Method and device in a node used for wireless communication

ABSTRACT

A method and a device in a node used for wireless communication are disclosed in the present disclosure. A first node transmits a first sequence and a first radio signal, the first sequence being associated with the first radio signal, the first sequence being transmitted on a first random-access channel, and a first bit block being used for generating the first radio signal; receives a second radio signal, the second radio signal comprising a first information block; and transmits a second sequence and a third radio signal, the second sequence being associated with the third radio signal, and the second sequence being transmitted on a second random-access channel, the first bit block being used for generating the third radio signal; the first information block comprises a first sequence index, the first sequence index corresponds to the first sequence.

CROSS-REFERENCE TO RELATED APPLICATION

This application is the continuation of the United States patentapplication U.S. Ser. No. 16/824,719, filed on Mar. 20, 2020, whichclaims the priority benefit of Chinese Patent Application No.201910223828.6, filed on Mar. 22, 2019, the full disclosure of which isincorporated herein by reference.

BACKGROUND Technical Field

The present disclosure relates to transmission methods and devices inwireless communication systems, and in particular to a transmissionscheme and device of random access in wireless communications.

Related Art

Application scenarios of future wireless communication systems arebecoming increasingly diversified, and different application scenarioshave different performance demands on systems. In order to meetdifferent performance requirements of various application scenarios, the3^(rd) Generation Partner Project (3GPP) Radio Access Network (RAN) #72plenary session decided to conduct the study of New Radio (NR), or whatis called fifth Generation (5G). The work Item (WI) of NR was approvedat the 3GPP RAN #75 plenary session to standardize the NR.

To adapt to a variety of application scenarios and meet differentrequirements, a study item (SI) of NR Non-orthogonal Multiple Access(NoMA) was also approved at the 3GPP RAN #76th plenary session. The SIwas started from Release 16 and soon after its completion a WI wasinitiated to standardize relevant techniques. Following the NoMA SI, theWI of 2-step Random Access (2-step RACH) under NR was approved at the3GPP RAN #82 plenary session.

SUMMARY

For a User Equipment (UE) in Release 16 and UEs of updated versions,both the 2-step Random Access process and the 4-step Random Access(4-step RACH) process are applicable. Compared with the traditional4-step RACH, which includes interactions of message 1 (Msg1), message 2(Msg2), message 3 (Msg3) and message 4 (Msg4), the 2-step RACH includesonly an interaction between message A (Msg A) and message B (Msg B), soemploying the 2-step RACH will significantly shorten random accesslatency and reduce signaling overhead. What differentiates the 2-stepRACH from the 4-step RACH is that Mag A in the 2-step RACH comprises aRACH preamble and a data signal transmission on PUSCH. There may be asituation where a preamble is detected but data signal on the PUSCH isnot correctly decoded. To address such issue, an illustrative solutionis to roll back to 4-step RACH mechanism so as to enable a base stationto send Msg A to the UE.

Unfortunately, the solution does not apply to semi-statically conversionbetween the 4-step RACH mode and the 2-step RACH mode, or a UE that onlysupports the working mode of 2-step RACH. Therefore, the presentdisclosure provides a solution of double type Msg B: when the basestation detects a preamble and correctly decoded data on PUSCH, a Msg Bof type I (including random access response and conflict resolution)will be sent out; when the base station detects a preamble, but fails todecode the data on PUSCH correctly, a Msg B of type II (that is, aphysical layer signaling) will be sent out. After receiving the Msg B oftype II, the UE performs a retransmission of Msg A, and meanwhileadjusts transmission parameters of Msg A retransmission in accordancewith previous information contained by the type II Msg B to ensurebetter matching with channel conditions. It should be noted thatembodiments in the base station and characteristics of the embodimentsmay be applied to the UE in the present disclosure if there is noconflict. Further, the embodiments of the present disclosure and thecharacteristics in the embodiments may be mutually combined when noconflict is incurred.

The present disclosure provides a method in a first node used forwireless communication, comprising:

transmitting a first sequence and a first radio signal, the firstsequence being associated with the first radio signal, the firstsequence being transmitted on a first random-access channel, and a firstbit block being used for generating the first radio signal;

receiving a second radio signal, the second radio signal comprising afirst information block; and

transmitting a second sequence and a third radio signal, the secondsequence being associated with the third radio signal, the secondsequence being transmitted on a second random-access channel, and thefirst bit block being used for generating the third radio signal;

herein, the first radio signal is used for carrying a firstidentification; the first information block is used for triggering atransmission of the third radio signal; the first information blockcomprises a first sequence index, the first sequence index correspondsto the first sequence; the first information block is used fordetermining transmission parameters of the third radio signal.

In one embodiment, the first node determines by receiving the firstinformation block that the first sequence is detected, and that thefirst radio signal is not correctly received.

In one embodiment, the first node determines that the first bit blockcomprised in the first radio signal is not correctly decoded through thefirst response signaling out of Q first-type response signaling(s)comprised in the first information block.

In one embodiment, an advantage of the above method is that since thefirst information block is received by the first node, whenretransmitting the first bit block, more appropriate radio signaltransmission parameters can be employed by the first node to enhance thesuccess rate of access.

According to one aspect of the present disclosure, the above method ischaracterized in that the first information block comprises Q first-typeresponse signaling(s), a first response signaling is one of the Qfirst-type response signaling(s), the first response signalingcorresponds to the first sequence, and the first response signaling isused for determining that the first bit block is not correctly decoded,Q is a positive integer.

According to one aspect of the present disclosure, the above method ischaracterized in that the first information block comprises a firsttarget signaling, the first target signaling corresponds to the firstsequence, the first target signaling is used for determining that thefirst bit block is not correctly decoded, a target receiver of the firstinformation block is the first node.

According to one aspect of the present disclosure, the above method ischaracterized in comprising:

performing a first blind detection and a second blind detectionrespectively on a first candidate channel and a second candidatechannel;

herein, the first radio signal is used for triggering the first blinddetection and the second blind detection; the second radio signal isdetected on the first candidate channel.

According to one aspect of the present disclosure, the above method ischaracterized in comprising:

receiving a first signaling in a first time window;

herein, a time domain resource unit occupied by the first candidatechannel and a time domain resource unit occupied by the second candidatechannel both belong to the first time window; at least one of atime-frequency resource unit occupied by the first sequence and atime-frequency resource unit occupied by the first radio signal is usedfor determining the first time window; the first signaling is used fordetermining scheduling information of the second radio signal.

According to one aspect of the present disclosure, the above method ischaracterized in that the first node is a UE.

According to one aspect of the present disclosure, the above method ischaracterized in that the first node is a relay node.

The present disclosure provides a method in a second node used forwireless communication, comprising:

receiving a first sequence and a first radio signal, the first sequencebeing associated with the first radio signal, the first sequence beingtransmitted on a first random-access channel, and a first bit blockbeing used for generating the first radio signal;

transmitting a second radio signal, the second radio signal comprising afirst information block; and

receiving a second sequence and a third radio signal, the secondsequence being associated with the third radio signal, the secondsequence being transmitted on a second random-access channel, and thefirst bit block being used for generating the third radio signal;

herein the first radio signal is used for carrying a firstidentification; the first information block is used for triggering atransmission of the third radio signal; the first information blockcomprises a first sequence index, the first sequence index correspondsto the first sequence; the first information block is used fordetermining transmission parameters of the third radio signal.

According to one aspect of the present disclosure, the above method ischaracterized in that the first information block comprises Q first-typeresponse signaling(s), a first response signaling is one of the Qfirst-type response signaling(s), the first response signalingcorresponds to the first sequence, and the first response signaling isused for determining that the first bit block is not correctly decoded,Q is a positive integer.

According to one aspect of the present disclosure, the above method ischaracterized in that the first information block comprises a firsttarget signaling, the first target signaling corresponds to the firstsequence, the first target signaling is used for determining that thefirst bit block is not correctly decoded, a target receiver of the firstinformation block is the first node.

According to one aspect of the present disclosure, the above method ischaracterized in comprising:

determining the first candidate channel out of a first candidate channeland a second candidate channel;

herein, a result of detection of the first radio signal is used fordetermining the first candidate channel; the second radio signal istransmitted on the first candidate channel.

According to one aspect of the present disclosure, the above method ischaracterized in comprising:

transmitting a first signaling in first time window;

herein, a time domain resource unit occupied by the first candidatechannel and a time domain resource unit occupied by the second candidatechannel both belong to the first time window; at least one of atime-frequency resource unit occupied by the first sequence and atime-frequency resource unit occupied by the first radio signal is usedfor determining the first time window; the first signaling is used fordetermining scheduling information of the second radio signal.

According to one aspect of the present disclosure, the above method ischaracterized in that the second node is a base station.

According to one aspect of the present disclosure, the above method ischaracterized in that the second node is a relay node.

The present disclosure provides a first node used for wirelesscommunication, comprising:

a first transmitter, which transmits a first sequence and a first radiosignal, the first sequence being associated with the first radio signal,the first sequence being transmitted on a first random-access channel,and a first bit block being use for generating the first radio signal;

a first receiver, which receives a second radio signal, the second radiosignal comprising a first information block; and

a second transmitter, which transmits a second sequence and a thirdradio signal, the second sequence being associated with the third radiosignal, the second sequence being transmitted on a second random-accesschannel, and the first bit block being used for generating the thirdradio signal;

herein, the first radio signal is used for carrying a firstidentification; the first information block is used for triggering atransmission of the third radio signal; the first information blockcomprises a first sequence index, the first sequence index correspondsto the first sequence; the first information block is used fordetermining transmission parameters of the third radio signal.

The present disclosure provides a second node used for wirelesscommunication, comprising:

a second receiver, which receives a first sequence and a first radiosignal, the first sequence being associated with the first radio signal,the first sequence being transmitted on a first random-access channel,and a first bit block being used for generating the first radio signal;

a third transmitter, which transmits a second radio signal, the secondradio signal comprising a first information block; and

a third receiver, which receives a second sequence and a third radiosignal, the second sequence being associated with the third radiosignal, the second sequence being transmitted on a second random-accesschannel, and the first bit block being used for generating the thirdradio signal;

herein, the first radio signal is used for carrying a firstidentification; the first information block is used for triggering atransmission of the third radio signal; the first information blockcomprises a first sequence index, the first sequence index correspondsto the first sequence; the first information block is used fordetermining transmission parameters of the third radio signal.

In one embodiment, the present disclosure is advantageous in thefollowing aspects:

The present disclosure determines by receiving of the first informationblock that the first sequence is detected and that the first radiosignal is not correctly received.

The present disclosure determines that the first bit block comprised inthe first radio signal is not correctly decoded by receiving of thefirst response signaling of the Q first-type response signaling(s)comprised in the first information block.

The present disclosure ensures that since the first information block isreceived through the first node, when the first bit block isretransmitted, the first node is able to employ more precise radiosignal transmission parameters, so as to enhance the rate of successfulaccessing.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features, objects and advantages of the present disclosure willbecome more apparent from the detailed description of non-restrictiveembodiments taken in conjunction with the following drawings:

FIG. 1 illustrates a flowchart of processing of a first node accordingto one embodiment of the present disclosure.

FIG. 2 illustrates a schematic diagram of a network architectureaccording to one embodiment of the present disclosure.

FIG. 3 illustrates a schematic diagram of a radio protocol architectureof a user plane and a control plane according to one embodiment of thepresent disclosure.

FIG. 4 illustrates a schematic diagram of a first node and a second nodeaccording to one embodiment of the present disclosure.

FIG. 5 illustrates a flowchart of radio signal transmission according toone embodiment of the present disclosure.

FIG. 6 illustrates a schematic diagram of relations between a firstinformation block, Q first-type response signaling(s) and a firstresponse signaling according to one embodiment of the presentdisclosure.

FIG. 7 illustrates a schematic diagram of a relation between Qfirst-type response signaling(s) and a first bitmap according to oneembodiment of the present disclosure.

FIG. 8 illustrates a schematic diagram of relation(s) between Qfirst-type response signaling(s) and Q characteristic sequenceidentifier(s) according to one embodiment of the present disclosure.

FIG. 9 illustrates a schematic diagram of a relation between a firstinformation block and a first target signaling according to oneembodiment of the present disclosure.

FIG. 10 illustrates a flowchart of determining a first candidate channelaccording to one embodiment of the present disclosure.

FIG. 11 illustrates a schematic diagram of respective relations of afirst sequence, a first radio signal, a first signaling and a secondradio signal with a first time window according to one embodiment of thepresent disclosure.

FIG. 12 illustrates a schematic diagram of a time-frequency resourceaccording to one embodiment of the present disclosure.

FIG. 13 illustrates a structure block diagram of a processing device ina first node according to one embodiment of the present disclosure.

FIG. 14 illustrates a structure block diagram of a processing device ina second node according to one embodiment of the present disclosure.

DESCRIPTION OF THE EMBODIMENTS

The technical scheme of the present disclosure is described below infurther details in conjunction with the drawings. It should be notedthat the embodiments of the present disclosure and the characteristicsof the embodiments may be arbitrarily combined if no conflict is caused.

Embodiment 1

Embodiment 1 illustrates a flowchart of processing of a first nodeaccording to one embodiment of the present disclosure, as shown in FIG.1 . In process 100 illustrated by FIG. 1 , each box represents a step.In Embodiment 1, the first node in the present disclosure first takesstep 101 to transmit a first sequence and a first radio signal; and thentakes step 102 to receive a second radio signal; and finally takes step103 to transmit a second sequence and a third radio signal; the firstsequence is associated with the first radio signal; the first sequenceis transmitted on a first random-access channel, and a first bit blockis used for generating the first radio signal; the second radio signalcomprises a first information block; and the second sequence isassociated with the third radio signal, the second sequence istransmitted on a second random-access channel, and the first bit blockis used for generating the third radio signal; the first radio signal isused for carrying a first identification; the first information block isused for triggering a transmission of the third radio signal; the firstinformation block comprises a first sequence index, the first sequenceindex corresponds to the first sequence; the first information block isused for determining transmission parameters of the third radio signal.

In one embodiment, the first sequence and the second sequence are bothpseudo random sequences.

In one embodiment, the first sequence and the second sequence are bothGold sequences.

In one embodiment, the first sequence and the second sequence are bothM-sequences.

In one embodiment, the first sequence and the second sequence are bothZadeoff-Chu sequences.

In one embodiment, the first sequence and the second sequence are bothRandom-Access Preambles.

In one embodiment, the generation modes of the first sequence and thesecond sequence can be found in 3GPP TS38.211, section 6.3.3.1.

In one embodiment, any of a subcarrier spacing (SCS) of subcarriersoccupied by the first sequence and an SCS of subcarriers occupied by thesecond sequence in frequency domain is one of 1.25 kHz, 5 kHz, 15 kHz,30 kHz, 60 kHz and 120 kHz.

In one embodiment, the first sequence comprises L₁ elements, any of theL₁ elements is a plural, and L₁ is a positive integer.

In one embodiment, the sequence length of the first sequence is the L₁.

In one embodiment, the L₁ is 839.

In one embodiment, the L₁ is 139.

In one embodiment, the sequence length of the first sequence is 839,which means that the first sequence comprises 839 elements.

In one embodiment, the sequence length of the first sequence is 839,which means that the SCS of subcarriers occupied by the first sequenceis 1.25 kHz.

In one embodiment, the sequence length of the first sequence is 839,which means that the SCS of subcarriers occupied by the first sequenceis 5 kHz.

In one embodiment, the sequence length of the first sequence is 139,which means that the first sequence comprises 139 elements.

In one embodiment, the sequence length of the first sequence is 139,which means that the SCS of subcarriers occupied by the first sequenceis 15 kHz.

In one embodiment, the sequence length of the first sequence is 139,which means that the SCS of subcarriers occupied by the first sequenceis 30 kHz.

In one embodiment, the sequence length of the first sequence is 139,which means that the SCS of subcarriers occupied by the first sequenceis 60 kHz.

In one embodiment, the sequence length of the first sequence is 139,which means that the SCS of subcarriers occupied by the first sequenceis 120 kHz.

In one embodiment, the second sequence comprises L₂ elements, any of theL₂ elements is a plural, and L₂ is a positive integer.

In one embodiment, the sequence length of the second sequence is the L₂.

In one embodiment, the L₂ is 839.

In one embodiment, the L₂ is 139.

In one embodiment, the sequence length of the second sequence is 839,which means that the second sequence comprises 839 elements.

In one embodiment, the sequence length of the second sequence is 839,which means that the SCS of subcarriers occupied by the second sequenceis 1.25 kHz.

In one embodiment, the sequence length of the second sequence is 839,which means that the SCS of subcarriers occupied by the second sequenceis 5 kHz.

In one embodiment, the sequence length of the second sequence is 139,which means that the second sequence comprises 139 elements.

In one embodiment, the sequence length of the second sequence is 139,which means that the SCS of subcarriers occupied by the second sequenceis 15 kHz.

In one embodiment, the sequence length of the second sequence is 139,which means that the SCS of subcarriers occupied by the second sequenceis 30 kHz.

In one embodiment, the sequence length of the second sequence is 139,which means that the SCS of subcarriers occupied by the second sequenceis 60 kHz.

In one embodiment, the sequence length of the second sequence is 139,which means that the SCS of subcarriers occupied by the second sequenceis 120 kHz.

In one embodiment, the first sequence is different from the secondsequence.

In one embodiment, a sequence in the first sequence is different from asequence of the second sequence.

In one embodiment, a sequence length of the first sequence is differentfrom a sequence length of the second sequence.

In one embodiment, the first sequence is the same as the secondsequence.

In one embodiment, a sequence in the first sequence is the same as asequence in the second sequence.

In one embodiment, a sequence length of the first sequence is the sameas a sequence length of the second sequence.

In one embodiment, the first sequence and the second sequence aretransmitted respectively on a first random-access channel and a secondrandom-access channel.

In one embodiment, both of the first random-access channel and thesecond random-related channel are Random Access Channels (RACHs).

In one embodiment, both of the first random-access channel and thesecond random-related channel are Physical Random Access Channels(PRACHs).

In one embodiment, both of the first random-access channel and thesecond random-related channel are Narrowband Physical Random AccessChannels (NPRACHs).

In one embodiment, both of the first random-access channel and thesecond random-related channel are Physical Sidelink Random AccessChannel (PSRACH).

In one embodiment, the first random-access channel comprises a RACHOccasion.

In one embodiment, the second random-access channel comprises a RACHOccasion.

In one embodiment, the first random-access channel is a RACH Occasion.

In one embodiment, the second random-access channel is a RACH Occasion.

In one embodiment, the RACH Occasion is a PRACH Occasion.

In one embodiment, the RACH Occasion is a NPRACH Occasion.

In one embodiment, the RACH Occasion is a PSRACH Occasion.

In one embodiment, the first random-access channel occupies at least onetime-frequency resource unit.

In one embodiment, the second random-access channel occupies at leastone time-frequency resource unit.

In one embodiment, the first random-access channel occupies onetime-frequency resource unit.

In one embodiment, the second random-access channel occupies onetime-frequency resource unit.

In one embodiment, the first random-access channel and the secondrandom-access channel are respectively two different RACH Occasions.

In one embodiment, a RACH Occasion where the first random-access channelis located and a RACH Occasion where the second random-access channel islocated are difference from each other.

In one embodiment, a RACH Occasion where the first random-access channelis located is earlier than a RACH Occasion where the secondrandom-access channel is located.

In one embodiment, the first random-access channel and the secondrandom-access channel respectively occupy two different time-frequencyresource units.

In one embodiment, a time-frequency resource unit occupied by the firstrandom-access channel is different from a time-frequency resource unitoccupied by the second random-access channel.

In one embodiment, a time-frequency resource unit occupied by the firstrandom-access channel is earlier than a time-frequency resource unitoccupied by the second random-access channel.

In one embodiment, the first sequence is subjected to Discrete FourierTransform (DFT) and then to Orthogonal Frequency Division Multiplexing(OFDM) before being transmitted on the first random-access channel.

In one embodiment, the second sequence is subjected to DFT and then toOFDM before being transmitted on the second random-access channel.

In one embodiment, the first sequence is sequentially subjected toSequence Generation, DFT, Modulation and Resource Element Mapping, andBroadband Symbol Generation to generate a first characteristic radiosignal.

In one embodiment, the second sequence is sequentially subjected toSequence Generation, DFT, Modulation and Resource Element Mapping, andBroadband Symbol Generation to generate a second characteristic radiosignal.

In one embodiment, the first characteristic radio signal is transmittedon the first random-access channel.

In one embodiment, the second characteristic radio signal is transmittedon the second random-access channel.

In one embodiment, the first characteristic radio signal comprises apositive integer number of first-type sequences, the first sequence isone of the positive integer number of first-type sequences, and thesequence length of any one of the positive integer number of first-typesequences is 139. Each of the positive integer number of first-typesequences in the first characteristic radio signal is Time-DivisionMultiplexing (TDM).

In one embodiment, the second characteristic radio signal comprises apositive integer number of second-type sequences, the second sequence isone of the positive integer number of second-type sequences, and thesequence length of any one of the positive integer number of second-typesequences is 139. Each of the positive integer number of second-typesequences in the second characteristic radio signal is TDM.

In one embodiment, any two of the positive integer number of first-typesequences in the first characteristic radio signal are the same.

In one embodiment, any two of the positive integer number of second-typesequences in the second characteristic radio signal are the same.

In one embodiment, at least two first-type sequences of the positiveinteger number of first-type sequences in the first characteristic radiosignal are different.

In one embodiment, at least two second-type sequences of the positiveinteger number of second-type sequences in the second characteristicradio signal are different.

In one embodiment, any two neighboring first-type sequences of thepositive integer number of first-type sequences in the firstcharacteristic radio signal are spaced by a Cyclic Prefix (CP).

In one embodiment, any two neighboring second-type sequences of thepositive integer number of second-type sequences in the secondcharacteristic radio signal are spaced by a CP.

In one embodiment, the first sequence and the second sequence arecell-specific.

In one embodiment, the first sequence and the second sequence areUE-specific.

In one embodiment, the first sequence is cell-specific, while the secondsequence is UE-specific.

In one embodiment, the first sequence and the second sequence arebroadcast.

In one embodiment, the first sequence and the second sequence aregroupcast.

In one embodiment, the first sequence and the second sequence areunicast.

In one embodiment, the first sequence is broadcast, while the secondsequence is groupcast.

In one embodiment, the first sequence is broadcast, while the secondsequence is unicast.

In one embodiment, the first sequence is groupcast, while the secondsequence is unicast.

In one embodiment, both the first sequence and the second sequence aretransmitted on unlicensed spectrum.

In one embodiment, the first radio signal and the third radio signal areboth transmitted on an Uplink Shared Channel (UL-SCH).

In one embodiment, the first radio signal is transmitted on a PhysicalUplink Shared Channel (PUSCH).

In one embodiment, the first radio signal is transmitted on a PhysicalUplink Control Channel (PUCCH).

In one embodiment, the third radio signal is transmitted on a PUSCH.

In one embodiment, the third radio signal is transmitted on a PUCCH.

In one embodiment, both the first radio signal and the third radiosignal are transmitted on a PUSCH.

In one embodiment, both the first radio signal and the third radiosignal are transmitted on a PUCCH.

In one embodiment, both the first radio signal and the third radiosignal are transmitted on a Physical Sidelink Shared Channel (PSSCH).

In one embodiment, both the first radio signal and the third radiosignal are transmitted on a Physical Sidelink Control Channel (PSCCH).

In one embodiment, the first radio signal is transmitted on a PUCCH anda PUSCH.

In one embodiment, the first radio signal is transmitted on a PSCCH anda PSSCH.

In one embodiment, the third radio signal is transmitted on a PUCCH anda PUSCH.

In one embodiment, the third radio signal is transmitted on a PSCCH anda PSSCH.

In one embodiment, the first sequence and the first radio signal arerespectively transmitted on a PRACH and a PUSCH.

In one embodiment, the second sequence and the third radio signal arerespectively transmitted on a PRACH and a PUSCH.

In one embodiment, the first radio signal and the third radio signal areboth cell-specific.

In one embodiment, the first radio signal and the third radio signal areboth UE-specific.

In one embodiment, the first radio signal is cell-specific, while thethird radio signal is UE-specific.

In one embodiment, the first radio signal and the third radio signal aretransmitted via broadcast.

In one embodiment, the first radio signal and the third radio signal aretransmitted via groupcast.

In one embodiment, the first radio signal and the third radio signal aretransmitted via unicast.

In one embodiment, the first radio signal and the third radio signal aretransmitted on licensed spectrum.

In one embodiment, the first radio signal and the third radio signal aretransmitted on unlicensed spectrum.

In one embodiment, the first radio signal is broadcast, while the thirdradio signal is unicast.

In one embodiment, the first radio signal is broadcast, while the thirdradio signal is groupcast.

In one embodiment, the first radio signal is groupcast, while the thirdradio signal is unicast.

In one embodiment, the first radio signal comprises all or part of ahigher layer signaling.

In one embodiment, the third radio signal comprises all or part of ahigher layer signaling.

In one embodiment, the first radio signal comprises all or part of aRadio Resource Control (RRC) layer signaling.

In one embodiment, the third radio signal comprises all or part of anRRC layer signaling.

In one embodiment, the first radio signal comprises one or more fieldsof an RRC Information Element (IE).

In one embodiment, the third radio signal comprises one or more fieldsof an RRC IE.

In one embodiment, the first radio signal comprises all or part of aMultimedia Access Control (MAC) layer signaling.

In one embodiment, the first radio signal comprises all or part of a MAClayer signaling.

In one embodiment, the first radio signal comprises one or more fieldsof a MAC Control Element (CE).

In one embodiment, the third radio signal comprises one or more fieldsof a MAC CE.

In one embodiment, the first radio signal comprises one or more fieldsof a physical (PHY) layer.

In one embodiment, the third radio signal comprises one or more fieldsof a PHY layer.

In one embodiment, the first radio signal comprises one or more fieldsof first Uplink Control Information (UCI).

In one embodiment, the third radio signal comprises one or more fieldsof second UCI.

In one embodiment, the first UCI is different from the second UCI.

In one embodiment, a time-frequency resource unit indicated by the firstUCI is different from a time-frequency resource unit indicated by thesecond UCI.

In one embodiment, the first radio signal does not comprise the firstUCI.

In one embodiment, the third radio signal does not comprise the secondUCI.

In one embodiment, the first radio signal comprises one or more fieldsof a Master Information Block-V2X-Sidelink (MIB-V2X-SL).

In one embodiment, the third radio signal comprises one or more fieldsof a MIB-V2X-SL.

In one embodiment, the first radio signal comprises one or more fieldsof a piece of first Sidelink Control Information (SCI).

In one embodiment, the third radio signal comprises one or more fieldsof a piece of second SCI.

In one embodiment, the first radio signal comprises a first DemodulationReference Signal (DMRS).

In one embodiment, the third radio signal comprises a third DMRS.

In one embodiment, the first DMRS is the same as the third DMRS.

In one embodiment, the first DMRS is different from the third DMRS.

In one embodiment, the first DMRS is used for demodulation of the firstradio signal.

In one embodiment, the third DMRS is used for demodulation of the thirdradio signal.

In one embodiment, parameters of a channel which the first DMRS goesthrough are related to parameters of a channel which the first radiosignal goes through.

In one embodiment, parameters of a channel which the third DMRS goesthrough are related to parameters of a channel which the third radiosignal goes through.

In one embodiment, the first radio signal does not comprise the firstDMRS.

In one embodiment, the third radio signal does not comprise the thirdDMRS.

In one embodiment, the third radio signal is a retransmission of thefirst radio signal.

In one embodiment, the third radio signal is a repetition of the firstradio signal.

In one embodiment, the third radio signal is exactly the same as thefirst radio signal.

In one embodiment, the third radio signal is partially the same as thefirst radio signal.

In one embodiment, a first bit block is used for generating the firstradio signal, the first bit block is used for generating the third radiosignal, and the first bit block comprises a positive integer number ofsequentially arranged bits.

In one embodiment, the first radio signal comprises the first bit block,and the third radio signal comprises the first bit block, wherein thefirst bit block comprises a positive integer number of sequentiallyarranged bits.

In one embodiment, all bits in the first bit block are used forgenerating the first radio signal; a part of bits in the first bit blockare used for generating the third radio signal.

In one embodiment, the first bit block comprises a positive integernumber of Code Blocks (CBs).

In one embodiment, the first bit block comprises a positive integernumber of Code Block Groups (CBGs).

In one embodiment, the first bit block comprises one Transport Block(TB).

In one embodiment, the first bit block is obtained after a TB issubjected to TB-level Cyclic Redundancy Check (CRC) Attachment.

In one embodiment, the first bit block is one of CBs obtained after a TBis subjected to TB-level CRC Attachment, Code Block Segmentation andCB-level CRC Attachment in sequence.

In one embodiment, the first radio signal is generated after all or partof bits in the first bit block are sequentially subjected to TB-levelCRC Attachment, Code Block Segmentation, CB-level CRC Attachment,Channel Coding, Rate Matching, Code Block Concatenation, scrambling,Modulation, Layer Mapping, Antenna Port Mapping, Mapping to PhysicalResource Blocks, Baseband Signal Generation, and Modulation andUpconversion.

In one embodiment, the first radio signal is an output after the firstbit block is sequentially subjected to Modulation Mapper, Layer Mapper,Precoding, Resource Element Mapper and Multicarrier Symbol Generation.

In one embodiment, the third radio signal is generated after all or partof bits in the first bit block are sequentially subjected to TB-levelCRC Attachment, Code Block Segmentation, CB-level CRC Attachment,Channel Coding, Rate Matching, Code Block Concatenation, scrambling,Modulation, Layer Mapping, Antenna Port Mapping, Mapping to PhysicalResource Blocks, Baseband Signal Generation, and Modulation andUpconversion.

In one embodiment, the third radio signal is an output after the firstbit block is sequentially subjected to Modulation Mapper, Layer Mapper,Precoding, Resource Element Mapper and Multicarrier Symbol Generation.

In one embodiment, the channel coding is based on a polar code.

In one embodiment, the channel coding is based on a Low-densityParity-Check (LDPC) code.

In one embodiment, only the first bit block is used for generating thefirst radio signal.

In one embodiment, bit block(s) other than the first bit block is(are)also used for generating the first radio signal.

In one embodiment, only the first bit block is used for generating thethird radio signal.

In one embodiment, bit block(s) other than the first bit block is(are)also used for generating the third radio signal.

In one embodiment, the SCS of subcarriers occupied by the first radiosignal in frequency domain is one of 15 kHz, 30 kHz, 60 kHz, 120 kHz,240 kHz, 480 kHz and 960 kHz.

In one embodiment, the SCS of subcarriers occupied by the third radiosignal in frequency domain is one of 15 kHz, 30 kHz, 60 kHz, 120 kHz,240 kHz, 480 kHz and 960 kHz.

In one embodiment, the SCS of subcarriers occupied by the first radiosignal in frequency domain is the same as the SCS of subcarriersoccupied by the third radio signal in frequency domain.

In one embodiment, the SCS of subcarriers occupied by the first radiosignal in frequency domain is different from the SCS of subcarriersoccupied by the third radio signal in frequency domain.

In one embodiment, the number of multicarrier symbols comprised by thefirst radio signal in time domain is one of 1, 2, 3, 4, 5, 6, 7, 11, 12,13 and 14.

In one embodiment, the number of multicarrier symbols comprised by thethird radio signal in time domain is one of 1, 2, 3, 4, 5, 6, 7, 11, 12,13 and 14.

In one embodiment, the number of multicarrier symbols comprised by thefirst radio signal in time domain is equal to the number of multicarriersymbols comprised by the third radio signal in time domain.

In one embodiment, the number of multicarrier symbols comprised by thefirst radio signal in time domain is unequal to the number ofmulticarrier symbols comprised by the third radio signal in time domain.

In one embodiment, the multicarrier symbol is an Orthogonal FrequencyDivision Multiplexing (OFDM) symbol.

In one embodiment, the multicarrier symbol is a Discrete FourierTransform Spread Frequency Division Multiplexing (DFT-s-OFDM) symbol.

In one embodiment, the multicarrier symbol is a Single Carrier FrequencyDivision Multiplexing Access (SC-FDMA).

In one embodiment, the multicarrier symbol is a Filter BankMulti-Carrier (FBMC).

In one embodiment, the first sequence and the first radio signal areTDM.

In one embodiment, the first characteristic radio signal and the firstradio signal are TDM.

In one embodiment, a first characteristic sequence group comprises apositive integer number of characteristic sequences, the firstcharacteristic sequence group corresponds to the first random-accesschannel, the first sequence is one of the positive integer number ofcharacteristic sequences in the first characteristic sequence group.

In one embodiment, any characteristic sequence in the firstcharacteristic sequence group is transmitted on the first random-accesschannel.

In one embodiment, for the first random-access channel, only onecharacteristic sequence can be selected from the first characteristicsequence group for transmission.

In one embodiment, the first radio signal is used for determining thefirst sequence out of the first characteristic sequence group.

In one embodiment, a payload size of the first radio signal is used fordetermining the first sequence out of the first characteristic sequencegroup.

In one embodiment, a number of bits comprised in the first bit block isused for determining the first sequence out of the first characteristicsequence group.

In one embodiment, a time-frequency resource unit occupied by the firstradio signal is used for determining the first sequence.

In one embodiment, the first sequence is used for determining atime-frequency resource unit occupied by the first radio signal.

In one embodiment, the first sequence is used for determining afrequency domain resource unit occupied by the first radio signal.

In one embodiment, the first sequence is used for determining a timedomain resource unit occupied by the first radio signal and a frequencydomain resource unit occupied by the first radio signal.

In one embodiment, a time-frequency resource unit occupied by the firstsequence is associated with a time-frequency resource unit occupied bythe first radio signal.

In one embodiment, a time domain resource unit occupied by the firstsequence is associated with a time domain resource unit occupied by thefirst radio signal.

In one embodiment, a frequency domain resource unit occupied by thefirst sequence is associated with a frequency domain resource unitoccupied by the first radio signal.

In one embodiment, a time-frequency resource unit occupied by the firstradio signal is used for determining a time-frequency resource unitoccupied by the first sequence.

In one embodiment, a time-frequency resource unit occupied by the firstsequence is used for determining a time-frequency resource unit occupiedby the first radio signal.

In one embodiment, a time domain resource unit occupied by the firstsequence and a time domain resource unit occupied by the first radiosignal are differentiated by a first time offset.

In one embodiment, the first time offset comprises a positive integernumber of subframe(s).

In one embodiment, the first time offset comprises a positive integernumber of slot(s).

In one embodiment, the first time offset comprises a positive integernumber of multicarrier symbol(s).

In one embodiment, the first time offset is a constant.

In one embodiment, the first time offset is pre-defined.

In one embodiment, the first time offset is configurable.

In one embodiment, a frequency domain resource unit occupied by thefirst sequence and a frequency domain resource unit occupied by thefirst radio signal are differentiated by a first frequency offset.

In one embodiment, a starting frequency domain resource unit offrequency domain resource units occupied by the first sequence and astarting frequency domain resource unit of frequency domain resourceunits occupied by the first radio signal are spaced apart by the firstfrequency offset.

In one embodiment, a lowest subcarrier in a frequency domain resourceunit occupied by the first sequence and a lowest subcarrier in afrequency domain resource unit occupied by the first radio signal arespaced apart by the first frequency offset.

In one embodiment, the first frequency offset comprises a positiveinteger number of Resource Block(s) (RB).

In one embodiment, the first frequency offset comprises a positiveinteger number of Physical Resource Block(s) (PRB).

In one embodiment, the first frequency offset comprises a positiveinteger number of Precoding Resource block Group(s) (PRG).

In one embodiment, the first frequency offset comprises a positiveinteger number of subcarrier(s).

In one embodiment, the first frequency offset is a constant.

In one embodiment, the first frequency offset is pre-defined.

In one embodiment, the first frequency offset is configurable.

In one embodiment, the first sequence is used for determining a firsttime-frequency resource pool, the first time-frequency resource poolcomprises a positive integer number of time-frequency resource unit(s),a time-frequency resource unit occupied by the first radio signalincludes a first time-frequency resource unit, the first time-frequencyresource unit is one of the positive integer number of time-frequencyresource unit(s).

In one embodiment, a root sequence of the first sequence is used fordetermining the first time-frequency resource pool.

In one embodiment, a cyclic shift based on the root sequence of thefirst sequence is used for determining the first time-frequency resourcepool.

In one embodiment, a time-frequency resource unit occupied by the firstsequence is used for determining the first time-frequency resource pool;a root sequence of the first sequence is used for determining the firsttime-frequency resource unit out of the first time-frequency resourcepool.

In one embodiment, a root sequence of the first sequence is used fordetermining a time domain resource unit occupied by the first radiosignal.

In one embodiment, a root sequence of the first sequence is used fordetermining a frequency domain resource unit occupied by the first radiosignal.

In one embodiment, a cyclic shift based on the root sequence of thefirst sequence is used for determining a frequency domain resource unitoccupied by the first radio signal.

In one embodiment, a frequency domain unit occupied by the firstsequence is used for determining a frequency domain resource unitoccupied by the first radio signal.

In one embodiment, a frequency domain unit occupied by the firstsequence belongs to a frequency domain resource unit occupied by thefirst radio signal.

In one embodiment, a frequency domain unit occupied by the firstsequence is the same as a frequency domain resource unit occupied by thefirst radio signal.

In one embodiment, a lowest subcarrier in a frequency domain resourceunit occupied by the first sequence is the same as a lowest subcarrierin a frequency domain resource unit occupied by the first radio signal.

In one embodiment, the first sequence is used for determining ascrambling sequence of the first radio signal.

In one embodiment, the first sequence is used for determining areceiving timing of the first radio signal.

In one embodiment, the second sequence and the third radio signal areTDM.

In one embodiment, the second characteristic radio signal and the thirdradio signal are TDM.

In one embodiment, a second characteristic sequence group comprises apositive integer number of characteristic sequence(s), the secondcharacteristic sequence group corresponds to the second random-accesschannel, the second sequence is one of the positive integer number ofcharacteristic sequence(s) in the second characteristic sequence group.

In one embodiment, any characteristic sequence in the secondcharacteristic sequence group is transmitted on the second random-accesschannel.

In one embodiment, for the second random-access channel, only onecharacteristic sequence can be selected from the second characteristicsequence group for transmission.

In one embodiment, the third radio signal is used for determining thesecond sequence out of the second characteristic sequence group.

In one embodiment, a payload size of the third radio signal is used fordetermining the second sequence out of the second characteristicsequence group.

In one embodiment, a number of bits comprised in the first bit block isused for determining the second sequence out of the secondcharacteristic sequence group.

In one embodiment, a time-frequency resource unit occupied by the thirdradio signal is used for determining the second sequence.

In one embodiment, the second sequence is used for determining atime-frequency resource unit occupied by the third radio signal.

In one embodiment, the second sequence is used for determining afrequency domain resource unit occupied by the third radio signal.

In one embodiment, the second sequence is used for determining a timedomain resource unit occupied by the third radio signal and a frequencydomain resource unit occupied by the third radio signal.

In one embodiment, a time-frequency resource unit occupied by the secondsequence is associated with a time-frequency resource unit occupied bythe third radio signal.

In one embodiment, a time domain resource unit occupied by the secondsequence is associated with a time domain resource unit occupied by thethird radio signal.

In one embodiment, a frequency domain resource unit occupied by thesecond sequence is associated with a frequency domain resource unitoccupied by the third radio signal.

In one embodiment, a time-frequency resource unit occupied by the thirdradio signal is used for determining a time-frequency resource unitoccupied by the second sequence.

In one embodiment, a time-frequency resource unit occupied by the secondsequence is used for determining a time-frequency resource unit occupiedby the third radio signal.

In one embodiment, a time domain resource unit occupied by the secondsequence and a time domain resource unit occupied by the third radiosignal are differentiated by a second time offset.

In one embodiment, the second time offset comprises a positive integernumber of subframe(s).

In one embodiment, the second time offset comprises a positive integernumber of slot(s).

In one embodiment, the second time offset comprises a positive integernumber of multicarrier symbol(s).

In one embodiment, the second time offset is a constant.

In one embodiment, the second time offset is pre-defined.

In one embodiment, the second time offset is configurable.

In one embodiment, a frequency domain resource unit occupied by thesecond sequence and a frequency domain resource unit occupied by thethird radio signal are differentiated by a second frequency offset.

In one embodiment, a starting frequency domain resource unit offrequency domain resource units occupied by the second sequence and astarting frequency domain resource unit of frequency domain resourceunits occupied by the third radio signal are spaced apart by the secondfrequency offset.

In one embodiment, a lowest subcarrier in a frequency domain resourceunit occupied by the second sequence and a lowest subcarrier in afrequency domain resource unit occupied by the third radio signal arespaced apart by the second frequency offset.

In one embodiment, the second frequency offset comprises a positiveinteger number of RB(s).

In one embodiment, the second frequency offset comprises a positiveinteger number of PRB(s).

In one embodiment, the second frequency offset comprises a positiveinteger number of PRG(s).

In one embodiment, the second frequency offset comprises a positiveinteger number of subcarrier(s).

In one embodiment, the second frequency offset is a constant.

In one embodiment, the second frequency offset is pre-defined.

In one embodiment, the second frequency offset is configurable.

In one embodiment, the second sequence is used for determining a secondtime-frequency resource pool, the second time-frequency resource poolcomprises a positive integer number of time-frequency resource unit(s),a time-frequency resource unit occupied by the third radio signalincludes a second time-frequency resource unit, the secondtime-frequency resource unit is one of the positive integer number oftime-frequency resource unit(s).

In one embodiment, a root sequence of the second sequence is used fordetermining the second time-frequency resource pool.

In one embodiment, a cyclic shift based on the root sequence of thesecond sequence is used for determining the second time-frequencyresource pool.

In one embodiment, a time-frequency resource unit occupied by the secondsequence is used for determining the second time-frequency resourcepool.

In one embodiment, a time-frequency resource unit occupied by the secondsequence is used for determining the second time-frequency resourcepool, and the root sequence of the second sequence is used fordetermining the second time-frequency resource unit out of the secondtime-frequency resource pool.

In one embodiment, the root sequence of the second sequence is used fordetermining a time domain resource unit occupied by the third radiosignal.

In one embodiment, the root sequence of the second sequence is used fordetermining a frequency domain resource unit occupied by the third radiosignal.

In one embodiment, a cyclic shift based on the root sequence of thesecond sequence is used for determining a frequency domain resource unitoccupied by the third radio signal.

In one embodiment, a frequency domain resource unit occupied by thesecond sequence is used for determining a frequency domain resource unitoccupied by the third radio signal.

In one embodiment, a frequency domain resource unit occupied by thesecond sequence belongs to a frequency domain resource unit occupied bythe third radio signal.

In one embodiment, a frequency domain resource unit occupied by thesecond sequence is the same as a frequency domain resource unit occupiedby the third radio signal.

In one embodiment, a lowest subcarrier in a frequency domain resourceunit occupied by the second sequence is the same as a lowest subcarrierin a frequency domain resource unit occupied by the third radio signal.

In one embodiment, the second sequence is used for determining ascrambling sequence of the third radio signal.

In one embodiment, the second sequence is used for determining areceiving timing of the third radio signal.

In one embodiment, the second radio signal is transmitted on a DownlinkShared Channel (DL-SCH).

In one embodiment, the second radio signal is transmitted on a PhysicalDownlink Shared Channel (PDSCH).

In one embodiment, the second radio signal is transmitted on a PhysicalSidelink Shared Channel (PSSCH).

In one embodiment, the second radio signal is transmitted on a PhysicalDownlink Control Channel (PDCCH).

In one embodiment, the second radio signal is transmitted on a PhysicalSidelink Control Channel (PSCCH).

In one embodiment, the second radio signal is cell-specific.

In one embodiment, the second radio signal is UE-specific.

In one embodiment, the second radio signal is transmitted via broadcast.

In one embodiment, the second radio signal is transmitted via groupcast.

In one embodiment, the second radio signal is transmitted via unicast.

In one embodiment, the second radio signal is transmitted on licensedspectrum.

In one embodiment, the second radio signal is transmitted on unlicensedspectrum.

In one embodiment, the second radio signal comprises all or part of ahigher layer signaling.

In one embodiment, the second radio signal comprises all or part of anRRC layer signaling.

In one embodiment, the second radio signal comprises one or more fieldsof an RRC IE.

In one embodiment, the second radio signal comprises all or part of aMAC layer signaling.

In one embodiment, the second radio signal comprises one or more fieldsof a MAC CE.

In one embodiment, the second radio signal comprises a Multimedia AccessControl Protocol Data Unit (MAC PDU).

In one embodiment, the second radio signal is a MAC PDU.

In one embodiment, the second radio signal comprises one or more fieldsof a PHY layer.

In one embodiment, the second radio signal comprises Downlink ControlInformation (DCI).

In one embodiment, the second radio signal does not comprise DCI.

In one embodiment, the second radio signal comprises Sidelink ControlInformation (SCI).

In one embodiment, the second radio signal does not comprise SCI.

In one embodiment, the second radio signal comprises DMRS.

In one embodiment, the second radio signal does not comprise DMRS.

In one embodiment, the SCS of subcarriers occupied by the second radiosignal in frequency domain is one of 15 kHz, 30 kHz, 60 kHz, 120 kHz,240 kHz, 480 kHz and 960 kHz.

In one embodiment, the second radio signal comprises Msg B in the 2-stepRandom Access.

In one embodiment, the second radio signal does not comprise Msg B inthe 2-step Random Access.

In one embodiment, the second radio signal comprises all or part ofinformation of a Random Access Response (RAR).

In one embodiment, the second radio signal is an RAR.

In one embodiment, the second radio signal does not comprise RAR.

In one embodiment, the second radio signal comprises the firstinformation block, the first information block comprises a positiveinteger number f sequentially arranged bits.

In one embodiment, the first information block comprises a positiveinteger number of CB(s).

In one embodiment, the first information block comprises a positiveinteger number of CBG(s).

In one embodiment, the first information block comprises a TB.

In one embodiment, the first information block is obtained after a TB issubjected to TB-level CRC Attachment.

In one embodiment, the first information block is a CB of CBs obtainedafter a TB is subjected to TB-level CRC Attachment, Code BlockSegmentation, and CB-level CRC Attachment in sequence.

In one embodiment, the second radio signal is generated after all orpart of bits in the first information block are sequentially subjectedto TB-level CRC Attachment, Code Block Segmentation, CB-level CRCAttachment, Channel Coding, Rate Matching, Code Block Concatenation,scrambling, Modulation, Layer Mapping, Antenna Port Mapping, Mapping toPhysical Resource Blocks, Baseband Signal Generation, and Modulation andUpconversion.

In one embodiment, the second radio signal is an output after the firstinformation block is sequentially subjected to Modulation Mapper, LayerMapper, Precoding, Resource Element Mapper and Multicarrier SymbolGeneration.

In one embodiment, only the first information block is used forgenerating the second radio signal.

In one embodiment, bit block(s) other than the first information blockis(are) also used for generating the second radio signal.

In one embodiment, the first information block comprises all or part ofa higher layer signaling.

In one embodiment, the first information block comprises all or part ofan RRC layer signaling.

In one embodiment, the first information block comprises all or part ofa MAC layer signaling.

In one embodiment, the first information block comprises one or morefields of a MAC CE.

In one embodiment, the first information block comprises one or morefields of a PHY layer.

In one embodiment, the first information block comprises a MultimediaAccess Control subheader (MAC subheader).

In one embodiment, the first information block is a MAC subheader.

In one embodiment, the first information block belongs to a MultimediaAccess Control sub Protocol Data Unit (MAC subPDU).

In one embodiment, the first information block comprises a positiveinteger number of first-type fields, and the positive integer number offirst-type fields are sequentially arranged in the first informationblock.

In one subembodiment, among the positive integer number of first-typefields comprised in the first information block at least two occupyequal numbers of bits.

In one subembodiment, among the positive integer number of first-typefields comprised in the first information block at least two occupyunequal numbers of bits.

In one embodiment, the second radio signal comprises a positive integernumber of second-type fields; the first information block is one of thepositive integer number of second-type fields.

In one embodiment, the first information block is used for generating ascrambling sequence of the second radio signal.

In one embodiment, the first information block is used for determining atime-frequency resource unit occupied by the second radio signal.

In one embodiment, the first information block comprises a firstpayload.

In one embodiment, the first information block does not comprise a firstpayload.

In one embodiment, the first payload includes a Multimedia AccessControl Payload (MAC payload).

In one embodiment, the first payload is a MAC payload.

In one embodiment, the first payload belongs to a MAC subPDU.

In one embodiment, the first payload comprises at least one of TimingAdvance Command (TAC), Uplink Grant (UL Grant) or UE ContentionResolution Identity.

In one embodiment, the first payload comprises TAC.

In one embodiment, the first payload comprises UL Grant.

In one embodiment, the first payload comprises UE Contention ResolutionIdentity.

In one embodiment, the first identification is used for identifying thefirst node.

In one embodiment, the first identification is an integer no less than 0and no greater than 230.

In one embodiment, the first identification is a hexadecimalnon-negative integer.

In one embodiment, the first identification comprises a positive integernumber of bits.

In one embodiment, the first identification comprises a positive integernumber of hexadecimal bits.

In one embodiment, the first identification comprises 4 hexadecimalbits.

In one embodiment, the first identification is a value betweenhexadecimal 0000 and hexadecimal FFFF.

In one embodiment, the first identification is a Cell Radio NetworkTemporary Identifier (C-RNTI).

In one embodiment, the first identification is a Temporary Cell RadioNetwork Temporary Identifier (TC-RNTI).

In one embodiment, the first identification is a Radio Network TemporaryIdentifier (RNTI).

In one embodiment, the first identification is a Random Access RadioNetwork Temporary Identifier (RA-RNTI).

In one embodiment, the first identification is a Paging RNTI (P-RNTI).

In one embodiment, the first identification is a Serving TemporaryMobile Subscriber Identity (S-TMSI).

In one embodiment, the first identification is an International MobileSubscriber Identification Number (IMSI).

In one embodiment, the first identification is a Globally UniqueTemporary UE Identity (GUTI).

In one embodiment, the phrase that the first radio signal is used forcarrying the first identification means that the first radio signalcomprises the first identification.

In one embodiment, the phrase that the first radio signal is used forcarrying the first identification means that the first bit blockcomprises the first identification.

In one embodiment, the first bit block does not comprise the firstidentification.

In one embodiment, the first bit block comprises N bit(s), the firstidentification comprises NO bit(s), the NO bit(s) in the firstidentification belongs(belong) to the N bit(s) in the first bit block.The N is a positive integer, and the NO is a positive integer no greaterthan the N.

In one embodiment, the phrase that the first radio signal is used forcarrying the first identification means that the first identificationbelongs to the first UCI in the first radio signal.

In one embodiment, the first identification belongs to the second UCI inthe third radio signal.

In one embodiment, the phrase that the first radio signal is used forcarrying the first identification means that the first identificationbelongs to the first SCI in the first radio signal.

In one embodiment, the first identification belongs to the second SCI inthe third radio signal.

In one embodiment, the first identification is used for generating thefirst bit block.

In one embodiment, the first identification is used for generating ascrambling sequence of the first radio signal.

In one embodiment, the first identification is used for generating ascrambling sequence of the third radio signal.

In one embodiment, the phrase that the first radio signal is used forcarrying the first identification means that the first identification isused for determining a time domain resource unit occupied by the firstradio signal.

In one embodiment, the first identification is used for determining atime domain resource unit occupied by the third radio signal.

In one embodiment, the phrase that the first radio signal is used forcarrying the first identification means that the first identification isused for determining a frequency domain resource unit occupied by thefirst radio signal.

In one embodiment, the first identification is used for determining afrequency domain resource unit occupied by the third radio signal.

In one embodiment, the phrase that the first radio signal is used forcarrying the first identification means that the first identification isused for determining a time-frequency resource unit occupied by thefirst radio signal.

In one embodiment, the first identification is used for determining atime-frequency resource unit occupied by the third radio signal.

In one embodiment, the phrase that the first radio signal is used forcarrying the first identification means that the first identification isused for determining a first PUSCH Occasion, the first radio signal istransmitted on the first PUSCH Occasion.

In one embodiment, the first identification is used for determining asecond PUSCH Occasion, the third radio signal is transmitted on thesecond PUSCH Occasion.

In one embodiment, the first PUSCH Occasion comprises a positive integernumber of time domain resource units.

In one embodiment, the first PUSCH Occasion comprises a positive integernumber of frequency domain resource units.

In one embodiment, the first PUSCH Occasion comprises a positive integernumber of time-frequency resource units.

In one embodiment, the second PUSCH Occasion comprises a positiveinteger number of time domain resource units.

In one embodiment, the second PUSCH Occasion comprises a positiveinteger number of frequency domain resource units.

In one embodiment, the second PUSCH Occasion comprises a positiveinteger number of time-frequency resource units.

In one embodiment, the phrase that the first radio signal is used forcarrying the first identification means that the first identification isused for determining a time-frequency resource unit occupied by thefirst radio signal out of the positive integer number of time-frequencyresource units.

In one embodiment, the first identification is used for determining atime-frequency resource unit occupied by the third radio signal out ofthe positive integer number of time-frequency resource units.

In one embodiment, the phrase that the first radio signal is used forcarrying the first identification means that the first radio signalcomprises the first identification or the first identification is usedfor determining a time-frequency resource unit occupied by the firstradio signal.

In one embodiment, the phrase that the first radio signal is used forcarrying the first identification means that the first radio signalcomprises the first identification or the first identification is usedfor determining the first PUSCH Occasion occupied by the first radiosignal.

In one embodiment, at least one of the first sequence and the firstradio signal carries the first identification.

In one embodiment, the first sequence and the first radio signal arejointly used for carrying the first identification.

In one embodiment, the first identification is used for determining atleast one of the first sequence, the first radio signal, thetime-frequency resource unit occupied by the first sequence or thetime-frequency resource unit occupied by the first radio signal.

In one embodiment, the first sequence comprises the firstidentification.

In one embodiment, the first characteristic radio signal comprises thefirst identification.

In one embodiment, the first sequence and the first radio signal jointlycomprise the first identification.

In one embodiment, the first sequence comprises a firstsub-identification, and the first radio signal comprises a secondsub-identification, where the first sub-identification and the secondsub-identification are jointly used for determining the firstidentification.

In one embodiment, the first identification is used for generating thefirst sequence.

In one embodiment, the first identification is used for determining thefirst sequence out of a positive integer number of characteristicsequences, the first sequence is one of the positive integer number ofcharacteristic sequences.

In one embodiment, the first identification is used for generating thefirst characteristic radio signal.

In one embodiment, the first identification is used for generating aroot sequence of the first sequence.

In one embodiment, the first identification is used for determining acyclic shift based on the root sequence of the first sequence.

In one embodiment, the first identification is used for determining atime domain resource unit occupied by the first sequence.

In one embodiment, the first identification is used for determining afrequency domain resource unit occupied by the first sequence.

In one embodiment, the first identification is used for determining atime-frequency resource unit occupied by the first sequence.

In one embodiment, the first identification is used for generating thefirst sequence and the first radio signal.

In one embodiment, the first identification is used for determining atime-frequency resource unit occupied by the first sequence and atime-frequency resource unit occupied by the first radio signal.

In one embodiment, the second radio signal comprises the firstidentification.

In one embodiment, the first identification is used for generating ascrambling sequence of the second radio signal.

In one embodiment, the first identification is used for generating a CRCof the second radio signal.

In one embodiment, the first identification is used for generating aDMRS of the second radio signal.

In one embodiment, the first random-access channel is used forgenerating a scrambling sequence of the second radio signal.

In one embodiment, a time domain resource unit and a frequency domainresource unit occupied by the first random-access channel are used forgenerating a scrambling sequence of the second radio signal.

In one embodiment, when the first information block is correctlyreceived, the third radio signal is transmitted.

In one embodiment, when the first information block is correctlyreceived, the second sequence and the third radio are transmitted.

In one embodiment, only when the first information block is correctlyreceived, the third radio signal is transmitted.

In one embodiment, channel decoding is performed on the second radiosignal, the first information block is determined to be correctlyreceived according to CRC, and the third radio signal is transmitted.

In one embodiment, receiving power detection is performed on the secondradio signal, more than one given threshold determines that the firstinformation block is correctly received, and the third radio signal istransmitted.

In one embodiment, sequence coherent detection is performed on thesecond radio signal to determine that the first information block iscorrectly received, and the third radio signal is transmitted.

In one embodiment, channel decoding is performed on the second radiosignal, CRC is performed to determine that the first information blockis correctly received, and the second sequence and the third radiosignal are transmitted.

In one embodiment, receiving power detection is performed on the secondradio signal, more than one given threshold determines that the firstinformation block is correctly received, and the second sequence and thethird radio signal are transmitted.

In one embodiment, sequence coherent detection is performed on thesecond radio signal to determine that the first information block iscorrectly received, and the sequence and the third radio signal aretransmitted.

In one embodiment, when the second radio signal is correctly received,the second radio signal comprises the first information block, and thethird radio signal is transmitted.

In one embodiment, when the second radio signal is correctly received,the second radio signal comprises the first information block, and thesecond sequence and the third radio signal are transmitted.

In one embodiment, when the first information block is not correctlyreceived, transmission of the third radio signal is dropped.

In one embodiment, when the first information block is not correctlyreceived, transmission of the second sequence and the third radio signalis dropped.

In one embodiment, channel decoding is performed on the second radiosignal, and CRC used to determine that the first information block isnot correctly received is not performed, transmission of the third radiosignal is dropped.

In one embodiment, receiving power detection is performed on the secondradio signal, no more than one given threshold determines that the firstinformation block is not correctly received, and transmission of thethird radio signal is dropped.

In one embodiment, sequence coherent detection is performed on thesecond radio signal to determine that the first information block is notcorrectly received, and transmission of the third radio signal isdropped.

In one embodiment, channel decoding is performed on the second radiosignal, and CRC used to determine that the first information block isnot correctly received is not performed, transmission of the secondsequence and the third radio signal is dropped.

In one embodiment, receiving power detection is performed on the secondradio signal, no more than one given threshold determines that the firstinformation block is not correctly received, and transmission of thesecond sequence and the third radio signal is dropped.

In one embodiment, sequence coherent detection is performed on thesecond radio signal to determine that the first information block is notcorrectly received, and transmission of the second sequence and thethird radio signal is dropped.

In one embodiment, the first random-access channel is associated with Z1first-type characteristic sequence(s), the first sequence is one of theZ1 first-type characteristic sequence(s), where Z1 is a positiveinteger.

In one embodiment, there exist the Z1 first-type characteristicsequence(s) in the first random-access channel.

In one embodiment, any first-type characteristic sequence of the Z1first-type characteristic sequence(s) is allowed to be transmitted onthe first random-access channel.

In one embodiment, any first-type characteristic sequence of the Z1first-type characteristic sequence(s) is transmitted on the firstrandom-access channel.

In one embodiment, when any first-type characteristic sequence of the Z1first-type characteristic sequence(s) is determined to be used fortransmission, the any first-type characteristic sequence is transmittedon the first random-access channel.

In one embodiment, a first-type characteristic sequence is selected fromthe Z1 first-type characteristic sequence(s) to be transmitted on thefirst random-access channel.

In one embodiment, the first sequence index is used for indicating thefirst sequence out of the Z1 first-type characteristic sequence(s).

In one embodiment, the first sequence index is the order of the firstsequence in the Z1 first-type characteristic sequence(s).

In one embodiment, the first sequence index is a positive integer from 1to Z1.

In one embodiment, the first sequence index is a non-negative integerfrom 0 to Z1−1.

In one embodiment, the Z1 is 64.

In one embodiment, the first sequence index comprises nZ bits, where nZis a positive integer.

In one embodiment, the nZ is 6.

In one embodiment, the first sequence index is a Random Access PreambleIdentifier (RAPID).

In one embodiment, the first information block comprises the firstsequence index.

In one embodiment, the first information block is the first sequenceindex.

In one embodiment, the first information block is used for indicatingwhether the first radio signal is correctly received.

In one embodiment, the first information block is used for indicatingthat the first radio signal is not correctly received.

In one embodiment, the first information block is used for indicatingwhether the first bit block is correctly received.

In one embodiment, the first information block is used for indicatingthat the first bit block is not correctly received.

In one embodiment, the first information block is used for indicatingwhether the first bit block is correctly decoded.

In one embodiment, the first information block is used for indicatingthat the first bit block is not correctly decoded.

In one embodiment, the first information block is used for indicatingthat the first sequence is correctly received, and that the first radiosignal is not correctly received.

In one embodiment, the first information block is used for indicatingthat the first sequence is correctly received, and that the first bitblock is not correctly received.

In one embodiment, the first information block comprises the firstsequence index; the first bit block is not correctly received.

In one embodiment, the first information block comprises the firstsequence index; the first bit block is not correctly decoded.

In one embodiment, the first information block comprises the firstsequence index, the first the first sequence is correctly received, andthe first bit block is not correctly received.

In one embodiment, the first information block comprises HybridAutomatic Repeat reQuest (HARQ).

In one embodiment, the first information block comprises HybridAutomatic Repeat reQuest-Negative Acknowledgement (HARQ-NACK).

In one embodiment, the first information block comprises the firstsequence index and a first HARQ.

In one embodiment, the first information block comprises the firstsequence index and a first HARQ-NACK.

In one embodiment, the first information block explicitly indicates thefirst sequence index.

In one embodiment, the first information block implicitly indicates thefirst sequence index.

In one embodiment, the nZ bits comprised in the first sequence indexbelong to the first information block.

In one embodiment, the first sequence index is one of the positiveinteger number of first-type fields in the first information block.

In one embodiment, the first sequence index is used for determining thefirst information block.

In one embodiment, the first sequence index is used for determining thefirst information block out of the positive integer number of first-typeinformation blocks, the first information block is one of the positiveinteger number of first-type information blocks, and the positiveinteger number of first-type information blocks belong to the secondradio signal.

In one embodiment, the first sequence index corresponds to the firstinformation block of the positive integer number of first-typeinformation blocks.

In one embodiment, the meaning of being correctly received includesperforming decoding on a radio signal, and the result of decoding on theradio signal passes the CRC.

In one embodiment, the meaning of not being correctly received includesperforming decoding on a radio signal, and the result of decoding on theradio signal fails to pass the CRC.

In one embodiment, the radio signal comprises the first sequence.

In one embodiment, the radio signal comprises the first radio signal.

In one embodiment, the radio signal comprises the first bit block.

In one embodiment, the meaning of being correctly received includesperforming energy detection on the radio signal in a period, and theaverage value of the result of the energy detection performed on theradio signal within the period exceeds a first given threshold.

In one embodiment, the meaning of not being correctly received includesperforming energy detection on the radio signal in a period, and theaverage value of the result of the energy detection performed on theradio signal within the period does not exceed a first given threshold.

In one embodiment, the meaning of being correctly received includesperforming coherent detection on the radio signal, and the signal energyacquired from the coherent detection on the radio signal exceeds asecond given threshold.

In one embodiment, the meaning of not being correctly received includesperforming coherent detection on the radio signal, and the signal energyacquired from the coherent detection on the radio signal does not exceeda second given threshold.

In one embodiment, transmission parameters of the third radio signalinclude a transmitting power of the third radio signal.

In one embodiment, transmission parameters of the third radio signalinclude a first power offset. The transmitting power of the third radiosignal is a sum of a transmitting power of the first radio signal andthe first offset.

In one embodiment, the first offset is measured by dB.

In one embodiment, the first offset is measured by mW.

In one embodiment, the first offset is an integer.

In one embodiment, the first offset is one of a collection of −3 dB, −1dB, 0 dB, 1 dB and 3 dB.

In one embodiment, transmission parameters of the third radio signalinclude scheduling information of the third radio signal.

In one embodiment, transmission parameters of the third radio signalinclude a time-frequency resource unit occupied by the third radiosignal.

In one embodiment, transmission parameters of the third radio signalinclude a time domain resource unit occupied by the third radio signal.

In one embodiment, transmission parameters of the third radio signalinclude a frequency domain resource unit occupied by the third radiosignal.

In one embodiment, transmission parameters of the third radio signalinclude the second PUSCH Occasion.

In one embodiment, transmission parameters of the third radio signalinclude a first time gap, the first time gap is a time gap between atime domain resource unit occupied by the third radio signal and a timedomain resource unit occupied by the first radio signal.

In one embodiment, the first time gap comprises a positive integernumber of slot(s).

In one embodiment, the first time gap comprises a positive integernumber of subframe(s).

In one embodiment, the first time gap is measured by ms.

In one embodiment, transmission parameters of the third radio signalinclude a spatial transmission parameter of the third radio signal.

In one embodiment, transmission parameters of the third radio signalinclude a Modulation and Coding Scheme (MC S) of the third radio signal.

In one embodiment, transmission parameters of the third radio signalinclude a Redundancy Version (RV) of the third radio signal.

In one embodiment, transmission parameters of the third radio signalinclude a third DMRS.

In one embodiment, transmission parameters of the third radio signalinclude a third DMRS port, and the third DMRS port correspond to thethird DMRS.

In one embodiment, transmission parameters of the third radio signalinclude a number of bits in the first bit block.

In one embodiment, transmission parameters of the third radio signalinclude a time gap between the third radio signal and the first radiosignal.

In one embodiment, the first information block comprises transmissionparameters of the third radio signal.

In one embodiment, the first information block is used for indicatingtransmission parameters of the third radio signal.

In one embodiment, the first information block is used for explicitlyindicating transmission parameters of the third radio signal.

In one embodiment, the first information block is used for implicitlyindicating transmission parameters of the third radio signal.

In one embodiment, transmission parameters of the third radio signalmake up at least one of the positive integer number of first-type fieldsin the first information block.

In one embodiment, a transmitting power of the third radio signal is oneof the positive integer number of first-type fields in the firstinformation block.

In one embodiment, a time-frequency resource unit occupied by the thirdradio signal is one of the positive integer number of first-type fieldsin the first information block.

In one embodiment, the second PUSCH Occasion is one of the positiveinteger number of first-type fields in the first information block.

In one embodiment, the MCS of the third radio signal is one of thepositive integer number of first-type fields in the first informationblock.

In one embodiment, the RV of the third radio signal is one of thepositive integer number of first-type fields in the first informationblock.

In one embodiment, the third DMRS is one of the positive integer numberof first-type fields in the first information block.

In one embodiment, the third DMRS port is one of the positive integernumber of first-type fields in the first information block.

In one embodiment, the second radio signal comprises a positive integernumber of sequentially arranged first-type information blocks, the firstinformation block is one of the positive integer number of sequentiallyarranged first-type information blocks, and an order of the firstinformation block in the positive integer number of sequentiallyarranged first-type information blocks comprised by the second radiosignal is used for determining the transmission parameters of the thirdradio signal.

In one embodiment, an order of the first information block in thepositive integer number of sequentially arranged first-type informationblocks comprised by the second radio signal is used for determining theRV of the third radio signal. The second PUSCH Occasion is a first-typefield of the positive integer number of first-type fields in the firstinformation block.

Embodiment 2

Embodiment 2 illustrates a schematic diagram of a network architectureaccording to the present disclosure, as shown in FIG. 2 .

FIG. 2 is a diagram illustrating a network architecture 200 of 5G NR,Long-Term Evolution (LTE) and Long-Term Evolution Advanced (LTE-A)systems. The 5G NR or LTE network architecture 200 may be called anEvolved Packet System (EPS) 200. The EPS 200 may comprise one or moreUEs 201, an NG-RAN 202, an Evolved Packet Core/5G-Core Network(EPC/5G-CN) 210, a Home Subscriber Server (HSS) 220 and an InternetService 230. The EPS 200 may be interconnected with other accessnetworks. For simple description, the entities/interfaces are not shown.As shown in FIG. 2 , the EPS 200 provides packet switching services.Those skilled in the art will find it easy to understand that variousconcepts presented throughout the present disclosure can be extended tonetworks providing circuit switching services or other cellularnetworks. The NG-RAN 202 comprises an NR node B (gNB) 203 and other gNBs204. The gNB 203 provides UE 201 oriented user plane and control planeterminations. The gNB 203 may be connected to other gNBs 204 via an Xninterface (for example, backhaul). The gNB 203 may be called a basestation, a base transceiver station, a radio base station, a radiotransceiver, a transceiver function, a Base Service Set (BSS), anExtended Service Set (ESS), a Transmitter Receiver Point (TRP) or someother applicable terms. The gNB 203 provides an access point of theEPC/5G-CN 210 for the UE 201. Examples of UE 201 include cellularphones, smart phones, Session Initiation Protocol (SIP) phones, laptopcomputers, Personal Digital Assistant (PDA), Satellite Radios,non-terrestrial base station communications, Global Positioning Systems(GPSs), multimedia devices, video devices, digital audio players (forexample, MP3 players), cameras, games consoles, unmanned aerialvehicles, air vehicles, narrow-band physical network equipment,machine-type communication equipment, land vehicles, automobiles,wearable equipment, or any other devices having similar functions. Thoseskilled in the art also can call the UE 201 a mobile station, asubscriber station, a mobile unit, a subscriber unit, a wireless unit, aremote unit, a mobile device, a wireless device, a radio communicationdevice, a remote device, a mobile subscriber station, an accessterminal, a mobile terminal, a wireless terminal, a remote terminal, ahandset, a user proxy, a mobile client, a client, a vehicle terminal,V2X equipment or some other appropriate terms. The gNB 203 is connectedto the EPC/5G-CN 210 via an S1/NG interface. The EPC/5G-CN 210 comprisesa Mobility Management Entity (MME)/Authentication Management Field(AMF)/User Plane Function (UPF) 211, other MMEs/AMFs/UPFs 214, a ServiceGateway (S-GW) 212 and a Packet Date Network Gateway (P-GW) 213. TheMME/AMF/UPF 211 is a control node for processing a signaling between theUE 201 and the EPC/5G-CN 210. Generally, the MME/AMF/UPF 211 providesbearer and connection management. All user Internet Protocol (IP)packets are transmitted through the S-GW 212. The S-GW 212 is connectedto the P-GW 213. The P-GW 213 provides UE IP address allocation andother functions. The P-GW 213 is connected to the Internet Service 230.The Internet Service 230 comprises IP services corresponding tooperators, specifically including Internet, Intranet, IP MultimediaSubsystem (IMS) and Packet Switching Streaming (PSS) services.

In one embodiment, the first node in the present disclosure includes theUE 201.

In one embodiment, the second node in the present disclosure includesthe gNB203.

In one embodiment, the UE in the present disclosure includes the UE 201.

In one embodiment, the base station in the present disclosure includesthe gNB203.

In one embodiment, the transmitter of the first sequence in the presentdisclosure includes the UE 201.

In one embodiment, the receiver of the first sequence in the presentdisclosure includes the gNB203.

In one embodiment, the transmitter of the first radio signal in thepresent disclosure includes the UE 201.

In one embodiment, the receiver of the first radio signal in the presentdisclosure includes the gNB203.

In one embodiment, the receiver of the first signaling in the presentdisclosure includes the UE 201.

In one embodiment, the transmitter of the first signaling in the presentdisclosure includes the gNB203.

In one embodiment, the receiver of the second radio signal in thepresent disclosure includes the UE 201.

In one embodiment, the transmitter of the second radio signal in thepresent disclosure includes the gNB203.

In one embodiment, the receiver of the third information block in thepresent disclosure includes the UE 201.

In one embodiment, the transmitter of the third information block in thepresent disclosure includes the gNB203.

Embodiment 3

Embodiment 3 illustrates a schematic diagram of an embodiment of a radioprotocol architecture of a user plane and a control plane according tothe present disclosure, as shown in FIG. 3 .

FIG. 3 is a schematic diagram illustrating a radio protocol architectureof a user plane and a control plane. In FIG. 3 , the radio protocolarchitecture for a UE and a base station (gNB or eNB) is represented bythree layers, which are a layer 1, a layer 2 and a layer 3,respectively. The layer 1 (L1) is the lowest layer which performs signalprocessing functions of various PHY layers. The L1 is called PHY 301 inthe present disclosure. The layer 2 (L2) 305 is above the PHY 301, andis in charge of the link between the UE and the basestation via the PHY301. In the user plane, L2 305 comprises a Medium Access Control (MAC)sublayer 302, a Radio Link Control (RLC) sublayer 303 and a Packet DataConvergence Protocol (PDCP) sublayer 304. All the three sublayersterminate at the base stations of the network side. Although notdescribed in FIG. 3 , the UE may comprise several higher layers abovethe L2 305, such as a network layer (i.e., IP layer) terminated at aP-GW 213 of the network side and an application layer terminated at theother side of the connection (i.e., a peer UE, a server, etc.). The PDCPsublayer 304 provides multiplexing among variable radio bearers andlogical channels. The PDCP sublayer 304 also provides a headercompression for a higher-layer packet so as to reduce a radiotransmission overhead. The PDCP sublayer 304 provides security byencrypting a packet and provides support for UE handover between basestations. The RLC sublayer 303 provides segmentation and reassembling ofa higher-layer packet, retransmission of a lost packet, and reorderingof a packet so as to compensate the disordered receiving caused byHybrid Automatic Repeat reQuest (HARQ). The MAC sublayer 302 providesmultiplexing between a logical channel and a transport channel. The MACsublayer 302 is also responsible for allocating between UEs variousradio resources (i.e., resource block) in a cell. The MAC sublayer 302is also in charge of HARQ operation. In the control plane, the radioprotocol architecture of the UE and the base station is almost the sameas the radio protocol architecture in the user plane on the PHY 301 andthe L2 305, but there is no header compression for the control plane.The control plane also comprises a Radio Resource Control (RRC) sublayer306 in the layer 3 (L3). The RRC sublayer 306 is responsible foracquiring radio resources (i.e., radio bearer) and configuring the lowerlayer using an RRC signaling between the base station and the UE.

In one embodiment, the radio protocol architecture in FIG. 3 isapplicable to the first node in the present disclosure.

In one embodiment, the radio protocol architecture in FIG. 3 isapplicable to the second node in the present disclosure.

In one embodiment, the first sequence in the present disclosure isgenerated on the PHY 301.

In one embodiment, the first radio signal in the present disclosure isgenerated on the RRC sublayer 306.

In one embodiment, the first radio signal in the present disclosure isgenerated on the MAC sublayer 302.

In one embodiment, the first radio signal in the present disclosure isgenerated on the PHY 301.

In one embodiment, the first signaling in the present disclosure isgenerated on the PHY 301.

In one embodiment, the second radio signal in the present disclosure isgenerated on the RRC sublayer 306.

In one embodiment, the second radio signal in the present disclosure isgenerated on the MAC sublayer 302.

In one embodiment, the second radio signal in the present disclosure isgenerated on the PHY 301.

In one embodiment, the first information block in the present disclosureis generated on the MAC sublayer 302.

In one embodiment, the second information block in the presentdisclosure is generated on the MAC sublayer 302.

In one embodiment, the third information block in the present disclosureis generated on the RRC sublayer 306.

Embodiment 4

Embodiment 4 illustrates a schematic diagram of a first node (firstcommunication device) and a second node (second communication device)according to the present disclosure, as shown in FIG. 4 . FIG. 4 is ablock diagram of a first communication device 410 and a secondcommunication device 450 in communication with each other in an accessnetwork.

The first communication device 410 comprises a controller/processor 475,a memory 476, a receiving processor 470, a transmitting processor 416, amulti-antenna receiving processor 472, a multi-antenna transmittingprocessor 471, a transmitter/receiver 418 and an antenna 420.

The second communication device 450 comprises a controller/processor459, a memory 460, a data source 467, a transmitting processor 468, areceiving processor 456, a multi-antenna transmitting processor 457, amulti-antenna receiving processor 458, a transmitter/receiver 454 and anantenna 452.

In a transmission from the first communication device 410 to the secondcommunication device 450, at the first communication device 410, ahigher layer packet from a core network is provided to thecontroller/processor 475. The controller/processor 475 implements thefunctionality of the L2 layer. In the transmission from the firstcommunication device 410 to the second communication device 450, thecontroller/processor 475 provides header compression, encryption, packetsegmentation and reordering, multiplexing between a logical channel anda transport channel and radio resource allocation of the secondcommunication device 450 based on various priorities. Thecontroller/processor 475 is also in charge of a retransmission of a lostpacket and a signaling to the second communication device 450. Thetransmitting processor 416 and the multi-antenna transmitting processor471 perform various signal processing functions used for the L1 layer(i.e., PHY). The transmitting processor 416 performs coding andinterleaving so as to ensure a Forward Error Correction (FEC) at thesecond communication device 450 side and the mapping to signal clusterscorresponding to each modulation scheme (i.e., BPSK, QPSK, M-PSK, andM-QAM, etc.). The multi-antenna transmitting processor 471 performsdigital spatial precoding, including codebook-based precoding andnon-codebook based precoding, and beamforming processing on encoded andmodulated signals to generate one or more spatial streams. Thetransmitting processor 416 then maps each spatial stream into asubcarrier. The mapped symbols are multiplexed with a reference signal(i.e., pilot frequency) in time domain and/or frequency domain, and thenthey are assembled through Inverse Fast Fourier Transform (IFFT) togenerate a physical channel carrying time-domain multicarrier symbolstreams. After that the multi-antenna transmitting processor 471performs transmission analog precoding/beamforming on the time-domainmulticarrier symbol streams. Each transmitter 418 converts a basebandmulticarrier symbol stream provided by the multi-antenna transmittingprocessor 471 into a radio frequency (RF) stream, which is laterprovided to antennas 420.

In a transmission from the first communication device 410 to the secondcommunication device 450, at the second communication device 450, eachreceiver 454 receives a signal via a corresponding antenna 452. Eachreceiver 454 recovers information modulated onto the RF carrier, andconverts the radio frequency stream into a baseband multicarrier symbolstream to be provided to the receiving processor 456. The receivingprocessor 456 and the multi-antenna receiving processor 458 performsignal processing functions of the L1 layer. The multi-antenna receivingprocessor 458 performs reception analog precoding/beamforming on abaseband multicarrier symbol stream provided by the receiver 454. Thereceiving processor 456 converts the processed baseband multicarriersymbol stream from time domain into frequency domain using FFT. Infrequency domain, a physical layer data signal and a reference signalare de-multiplexed by the receiving processor 456, wherein the referencesignal is used for channel estimation, while the data signal issubjected to multi-antenna detection in the multi-antenna receivingprocessor 458 to recover any second communication device 450-targetedspatial stream. Symbols on each spatial stream are demodulated andrecovered in the receiving processor 456 to generate a soft decision.Then the receiving processor 456 decodes and de-interleaves the softdecision to recover the higher-layer data and control signal transmittedby the first communication device 410. Next, the higher-layer data andcontrol signal are provided to the controller/processor 459. Thecontroller/processor 459 performs functions of the L2 layer. Thecontroller/processor 459 can be associated with a memory 460 that storesprogram code and data. The memory 460 can be called a computer readablemedium. In the transmission from the first communication device 410 tothe second communication device 450, the controller/processor 459provides demultiplexing between a transport channel and a logicalchannel, packet reassembling, decrypting, header decompression andcontrol signal processing so as to recover a higher-layer packet fromthe core network. The higher-layer packet is later provided to allprotocol layers above the L2 layer, or various control signals can beprovided to the L3 layer for processing.

In a transmission from the second communication device 450 to the firstcommunication device 410, at the second communication device 450, thedata source 467 is configured to provide a higher-layer packet to thecontroller/processor 459. The data source 467 represents all protocollayers above the L2 layer. Similar to a transmitting function of thefirst communication device 410 described in the transmission from thefirst communication device 410 to the second communication device 450,the controller/processor 459 performs header compression, encryption,packet segmentation and reordering, and multiplexing between a logicalchannel and a transport channel based on radio resource allocation so asto provide the L2 layer functions used for the user plane and thecontrol plane. The controller/processor 459 is also responsible for aretransmission of a lost packet, and a signaling to the firstcommunication device 410. The transmitting processor 468 performsmodulation and mapping, as well as channel coding, and the multi-antennatransmitting processor 457 performs digital multi-antenna spatialprecoding, including codebook-based precoding and non-codebook basedprecoding, and beamforming. The transmitting processor 468 thenmodulates generated spatial streams into multicarrier/single-carriersymbol streams. The modulated symbol streams, after being subjected toanalog precoding/beamforming in the multi-antenna transmitting processor457, are provided from the transmitter 454 to each antenna 452. Eachtransmitter 454 first converts a baseband symbol stream provided by themulti-antenna transmitting processor 457 into a radio frequency symbolstream, and then provides the radio frequency symbol stream to theantenna 452.

In a transmission from the second communication device 450 to the firstcommunication device 410, the function of the first communication device410 is similar to the receiving function of the second communicationdevice 450 described in the transmission from the first communicationdevice 410 to the second communication device 450. Each receiver 418receives a radio frequency signal via a corresponding antenna 420,converts the received radio frequency signal into a baseband signal, andprovides the baseband signal to the multi-antenna receiving processor472 and the receiving processor 470. The receiving processor 470 and themulti-antenna receiving processor 472 jointly provide functions of theL1 layer. The controller/processor 475 provides functions of the L2layer. The controller/processor 475 can be associated with the memory476 that stores program code and data. The memory 476 can be called acomputer readable medium. In the transmission from the secondcommunication device 450 to the first communication device 410, thecontroller/processor 475 provides de-multiplexing between a transportchannel and a logical channel, packet reassembling, decrypting, headerdecompression, control signal processing so as to recover a higher-layerpacket from the second communication device 450. The higher-layer packetcoming from the controller/processor 475 may be provided to the corenetwork.

In one embodiment, the first node in the present disclosure includes thesecond communication device 450, while the second node in the presentdisclosure includes the first communication device 410.

In one subembodiment, the first node is a UE, and the second node is abase station.

In one subembodiment, the first node is a UE, and the second node is arelay node.

In one subembodiment, the first node is a relay node, and the secondnode is a base station.

In one subembodiment, the second communication device 450 comprises atleast one controller/processor. The at least one controller/processor isin charge of HARQ operation.

In one subembodiment, the first communication device 410 comprises atleast one controller/processor. The at least one controller/processor isresponsible of implementing ACK and/or NACK protocol for error detectionas a way to support HARQ operation.

In one subembodiment, the first communication device 410 comprises atleast one controller/processor. The at least one controller/processor isin charge of HARQ operation.

In one subembodiment, the second communication device 450 comprises atleast one controller/processor. The at least one controller/processor isresponsible of implementing ACK and/or NACK protocol for error detectionas a way to support HARQ operation.

In one embodiment, the second communication device 450 comprises atleast one processor and at least one memory. The at least one memorycomprises computer program codes; the at least one memory and thecomputer program codes are configured to be used in collaboration withthe at least one processor. The second communication device 450 at leasttransmits a first sequence and a first radio signal, the first sequencebeing associated with the first radio signal; and receives a secondradio signal; the first radio signal is used for carrying a firstidentification; the second radio signal comprises a first informationblock, the first information block comprising a first field and a secondfield, the second field is used for determining a first value, the firstvalue is a non-negative integer; a value range to which the first fieldand the second field belong is used for determining whether the secondradio signal comprises a second information block, the secondinformation block comprises a first-type identifier, the targetidentifier belongs to the first-type identifier.

In one embodiment, the second communication device 450 comprises amemory that stores a computer readable instruction program. The computerreadable instruction program generates an action when executed by atleast one processor. The action includes transmitting a first sequenceand a first radio signal, the first sequence being associated with thefirst radio signal; and receiving a second radio signal; the first radiosignal is used for carrying a first identification; the second radiosignal comprises a first information block, the first information blockcomprising a first field and a second field, the second field is usedfor determining a first value, the first value is a non-negativeinteger; a value range to which the first field and the second fieldbelong is used for determining whether the second radio signal comprisesa second information block, the second information block comprises afirst-type identifier, the target identifier belongs to the first-typeidentifier.

In one embodiment, the first communication device 410 comprises at leastone processor and at least one memory. The at least one memory comprisescomputer program codes. The at least one memory and the computer programcodes are configured to be used in collaboration with the at least oneprocessor. The first communication device 410 at least receives a firstsequence and a first radio signal, the first sequence being associatedwith the first radio signal; and transmits a second radio signal; thefirst radio signal is used for carrying a first identification; thesecond radio signal comprises a first information block, the firstinformation block comprising a first field and a second field, thesecond field is used for determining a first value, the first value is anon-negative integer; a value range to which the first field and thesecond field belong is used for determining whether the second radiosignal comprises a second information block, the second informationblock comprises a first-type identifier, the target identifier belongsto the first-type identifier.

In one embodiment, the first communication device 410 comprises a memorythat stores a computer readable instruction program. The computerreadable instruction program generates an action when executed by atleast one processor. The action includes receiving a first sequence anda first radio signal, the first sequence being associated with the firstradio signal; and transmitting a second radio signal; the first radiosignal is used for carrying a first identification; the second radiosignal comprises a first information block, the first information blockcomprising a first field and a second field, the second field is usedfor determining a first value, the first value is a non-negativeinteger; a value range to which the first field and the second fieldbelong is used for determining whether the second radio signal comprisesa second information block, the second information block comprises afirst-type identifier, the target identifier belongs to the first-typeidentifier.

In one embodiment, at least one of the antenna 452, the transmitter 454,the multi-antenna transmitting processor 458, the transmitting processor468, the controller/processor 459, the memory 460 or the data source 467is used in the present disclosure for transmitting the first sequence.

In one embodiment, at least one of the antenna 452, the transmitter 454,the multi-antenna transmitting processor 458 or the transmittingprocessor 468 is used in the present disclosure for transmitting thefirst sequence.

In one embodiment, at least one of the antenna 452, the transmitter 454,the multi-antenna transmitting processor 458, the transmitting processor468, the controller/processor 459, the memory 460 or the data source 467is used in the present disclosure for transmitting the first radiosignal.

In one embodiment, at least one of the antenna 452, the transmitter 454,the multi-antenna transmitting processor 458 or the transmittingprocessor 468 is used in the present disclosure for transmitting thefirst radio signal.

In one embodiment, at least one of the antenna 452, the receiver 454,the multi-antenna receiving processor 458, the receiving processor 456,the controller/processor 459, the memory 460 or the data source 467 isused in the present disclosure for receiving the first signaling.

In one embodiment, the antenna 452, the receiver 454, the multi-antennareceiving processor 458, the receiving processor 456, thecontroller/processor 459, the memory 460 and the data source 467 areused in the present disclosure for receiving the first signaling.

In one embodiment, at least one of the antenna 452, the receiver 454,the multi-antenna receiving processor 458, the receiving processor 456,the controller/processor 459, the memory 460 or the data source 467 isused in the present disclosure for receiving the second radio signal.

In one embodiment, the antenna 452, the receiver 454, the multi-antennareceiving processor 458, the receiving processor 456, thecontroller/processor 459, the memory 460 and the data source 467 areused in the present disclosure for receiving the second radio signal.

In one embodiment, at least one of the antenna 452, the receiver 454,the multi-antenna receiving processor 458, the receiving processor 456,the controller/processor 459, the memory 460 or the data source 467 isused in the present disclosure for receiving the third informationblock.

In one embodiment, the antenna 452, the receiver 454, the multi-antennareceiving processor 458, the receiving processor 456, thecontroller/processor 459, the memory 460 and the data source 467 areused in the present disclosure for receiving the third informationblock.

Embodiment 5

Embodiment 5 illustrates a flowchart of radio signal transmissionaccording to one embodiment of the present disclosure, as shown in FIG.5 . In FIG. 5 , a first node U1 and a second node N2 are communicationnodes that transmit via an air interface.

The first node U1 transmits a first sequence and a first radio signal instep S11; performs a first blind detection and a second blind detectionrespectively in step S12; receives a first signaling in step S13;receives a second radio signal in step S14; and transmits a secondsequence and a third radio signal in step S15.

The second node N2 receives a first sequence and a first radio signal instep S21; determines a first candidate channel in step S22; transmits afirst signaling in step S23; transmits a second radio signal in stepS24; and receives a second sequence and a third radio signal in stepS25.

In Embodiment 5, the first sequence is associated with the first radiosignal, the first sequence being transmitted on a first random-accesschannel, and a first bit block being used for generating the first radiosignal; the second radio signal comprises a first information block; thesecond sequence is associated with the third radio signal, the secondsequence being transmitted on a second random-access channel, and thefirst bit block being used for generating the third radio signal; thefirst radio signal is used for carrying a first identification; thefirst information block is used for triggering a transmission of thethird radio signal; the first information block comprises a firstsequence index, the first sequence index corresponding to the firstsequence; the first information block is used for determiningtransmission parameters of the third radio signal; the first blinddetection is performed on a first candidate channel, and the secondblind detection is performed on a second candidate channel; the firstradio signal is used for triggering the first blind detection and thesecond blind detection; the second radio signal is detected on the firstcandidate channel; the first signaling is received in a first timewindow; a time domain resource unit occupied by the first candidatechannel and a time domain resource unit occupied by the second candidatechannel belong to the first time window; at least one of radio resourceoccupied by the first sequence and radio resource occupied by the firstradio signal is used for determining the first time window; the firstsignaling is used for determining scheduling information of the secondradio signal.

In one embodiment, the first information block comprises Q first-typeresponse signaling(s). A first response signaling is one of the Qfirst-type response signaling(s), the first response signalingcorresponds to the first sequence, the first response sequence is usedfor determining that the first bit block is not correctly decoded by thesecond node N2. Q is a positive integer.

In one embodiment, the first information block comprises a first targetsignaling, the first target signaling corresponds to the first sequence,the first target signaling is used for determining that the first bitblock is not correctly decoded by the second node N2, a target receiverof the first information block is the first node U1.

In one embodiment, the second node N2 is a maintenance base station fora serving cell of the first node U1.

In one embodiment, the second node N2 is an access base station for aserving cell of the first node U1.

In one embodiment, the first signaling comprises scheduling informationof the second radio signal.

In one embodiment, the first signaling is used for indicating atime-frequency resource unit occupied by the second radio signal.

In one embodiment, the first signaling is used for indicating an MCSemployed by the second radio signal.

In one embodiment, the first signaling is used for indicating atime-frequency resource unit occupied by the second radio signal and anMCS employed by the second radio signal.

In one embodiment, the first signaling is used for indicating a DMRSemployed by the second radio signal.

In one embodiment, the first signaling is used for indicating atransmitting power of the second radio signal.

In one embodiment, the first signaling is used for indicating a numberof bits comprised in the first information block.

In one embodiment, the first signaling is used for indicating an RV ofthe second radio signal.

In one embodiment, a time-frequency resource unit occupied by the firstsignaling is used for determining a time-frequency resource unitoccupied by the second radio signal.

In one embodiment, a transmitting power of the first signaling is usedfor determining a transmitting power of the second radio signal.

In one embodiment, the first signaling is transmitted on a PDCCH.

In one embodiment, the first signaling and the second radio signal arerespectively transmitted on a PDCCH and a PDSCH.

In one embodiment, the first signaling and the second radio signal arerespectively transmitted on an NPDCCH and an NPDSCH.

In one embodiment, the first signaling and the second radio signal arerespectively transmitted on a PSCCH and a PSSCH.

In one embodiment, the first signaling is transmitted via broadcast.

In one embodiment, the first signaling is transmitted via groupcast.

In one embodiment, the first signaling is transmitted via unicast.

In one embodiment, the first signaling is cell-specific.

In one embodiment, the first signaling is UE-specific.

In one embodiment, the first signaling is dynamically configured.

In one embodiment, the first signaling comprises one or more fields of aPHY signaling.

In one embodiment, the first signaling comprises one or more fields of apiece of DCI.

In one embodiment, the first signaling comprises one or more fields of apiece of SCI.

In one embodiment, the first signaling is DCI.

In one embodiment, the first signaling is SCI.

In one embodiment, the first signaling includes the first targetsignaling in the present disclosure.

In one embodiment, the first signaling is transmitted on the firstcandidate channel.

In one embodiment, the first signaling is detected on the firstcandidate channel.

In one embodiment, the first time window comprises a time domainresource unit occupied by the first signaling.

In one embodiment, the first signaling is transmitted in the first timewindow.

In one embodiment, the first signaling carries a first characteristicidentifier.

In one embodiment, the first characteristic identifier is used forscrambling the first signaling.

In one embodiment, the first characteristic identifier is used forgenerating a scrambling sequence of the first signaling.

In one embodiment, the first characteristic identifier is used forgenerating a DMRS of the first signaling.

In one embodiment, the first characteristic identifier is used forgenerating CRC of the first signaling.

In one embodiment, the first characteristic identifier is a hexadecimalnon-negative integer.

In one embodiment, the first characteristic identifier comprises 4hexadecimal bits.

In one embodiment, the first characteristic identifier is a valuebetween hexadecimal 0000 and hexadecimal FFFF.

In one embodiment, the first characteristic identifier is an RNTI.

In one embodiment, the first characteristic identifier is a RA-RNTI.

In one embodiment, the first characteristic identifier is a C-RNTI.

In one embodiment, the first characteristic identifier is a TC-RNTI.

In one embodiment, a time-frequency resource unit occupied by the firstsequence is used for determining the first characteristic identifier.

In one embodiment, a time-frequency resource unit occupied by the firstradio signal is used for determining the first characteristicidentifier.

In one embodiment, a time-frequency resource unit occupied by the firstsequence and a time-frequency resource unit occupied by the first radiosignal are jointly used for determining the first characteristicidentifier.

In one embodiment, the first RACH Occasion is used for determining thefirst characteristic identifier out of a positive integer number offirst-type characteristic identifiers; the first characteristicidentifier is one of the positive integer number of first-typecharacteristic identifiers.

In one embodiment, the first characteristic identifier is a sum of asymbolic index of a first multicarrier symbol of a time-frequencyresource unit occupied by the first sequence, a multiple of a slot indexof a time domain resource unit occupied by the first sequence, amultiple of a frequency domain resource unit occupied by the firstsequence and a multiple of an uplink carrier index.

In one embodiment, the first characteristic identifier is equal to 1+asymbolic index of a first multicarrier symbol of a time-frequencyresource unit occupied by the first sequence +14×a multiple of a slotindex of a time domain resource unit occupied by the first sequence+14×80×a multiple of a frequency domain resource unit occupied by thefirst sequence +14×80×8×a multiple of an uplink carrier index.

In one embodiment, the first characteristic identifier is used forgenerating the first signaling.

In one embodiment, the first characteristic identifier is used forscrambling the first signaling.

In one embodiment, the first characteristic identifier is used forgenerating CRC of the first signaling.

In one embodiment, the first characteristic identifier is used forgenerating the second signaling.

In one embodiment, the first characteristic identifier is used forscrambling the second radio signal.

In one embodiment, the first characteristic identifier is used forgenerating CRC of the second radio signal.

In one embodiment, the first characteristic identifier is used forgenerating a DMRS of the second radio signal.

In one embodiment, the first time window comprises a positive integernumber of slot(s).

In one embodiment, the first time window comprises a positive integernumber of multicarrier symbol(s).

In one embodiment, the first time window comprises a positive integernumber of subframe(s).

In one embodiment, the first time window comprises a positive integernumber of ms.

In one embodiment, parameters of the first time window include one ormore of a start of the first time window, an end of the first timewindow and length of the first time window (Response Window Size).

In one embodiment, a start of the first time window refers to the timewhen the first node starts monitoring the first signaling.

In one embodiment, an end of the first time window refers to the latesttime when the first node stops monitoring the first signaling.

In one embodiment, time length of the first time window refers to aperiod from the start of the first time window to the end of the firsttime window.

In one embodiment, the time length of the first time window is anintegral multiple of a slot.

In one embodiment, the time length of the first time window is anintegral multiple of a multicarrier symbol.

In one embodiment, the time length of the first time window is anintegral multiple of a subframe.

In one embodiment, the time length of the first time window is no longerthan 10 ms.

In one embodiment, the time length of the first time window is one of 1slot, 2 slots, 4 slots, 8 slots, 10 slots, 20 slots, 40 slots and 80slots.

In one embodiment, the time length of the first time window isconfigured by a higher layer signaling.

Embodiment 6

Embodiment 6 illustrates a schematic diagram of relations between afirst information block, Q first-type response signaling(s) and a firstresponse signaling according to one embodiment of the presentdisclosure, as shown in FIG. 6 . In FIG. 6 , each box framed with solidlines represents any of the Q first-type response signaling(s), and thebox filled with slashes represents the first response signaling of thepresent disclosure.

In Embodiment 6, the first information block comprises Q first-typeresponse signaling(s), a first response signaling is one of the Qfirst-type response signaling(s), the first response signalingcorresponds to the first sequence, the first response signaling is usedfor determining that the first bit block is not correctly decoded, Q isa positive integer.

In one embodiment, a target receiver of the first information blockincludes a transmitter of the first radio signal.

In one embodiment, a target receiver(s) of the first information blockincludes(include) a positive integer number of communication node(s),and a transmitter of the first radio signal is one of the positiveinteger number of communication node(s).

In one embodiment, any of the positive integer number of communicationnode(s) includes a UE.

In one embodiment, any of the positive integer number of communicationnode(s) includes relay equipment.

In one embodiment, the Q first-type response signalings are responsesrespectively corresponding to Q first-type radio signals, at least twoof the Q first-type radio signals are transmitted by different UEs.

In one subembodiment, the first radio signal is one of the Q first-typeradio signals.

In one subembodiment, one of the Q first-type radio signals other thanthe first radio signal is transmitted by another UE apart from the firstnode.

In one subembodiment, the Q first-type radio signals are respectivelytransmitted by Q UEs, the first node is one of the Q UEs.

In one embodiment, a target receiver(s) of the Q first-type responsesignaling(s) includes(include) the first node.

In one embodiment, target receivers of the Q first-type responsesignaling(s) include the first node and one of the positive integernumber of communication nodes other than the first node.

In one embodiment, the Q first-type response signaling(s) respectivelycorresponds(correspond) to the Q first-type radio signal(s).

In one embodiment, the first radio signal is one of the Q first-typeradio signal(s), the first response signaling is one of the Q first-typeresponse signaling(s), and the first response signaling corresponds tothe first radio signal.

In one embodiment, the Q first-type radio signal(s) respectivelycomprises(comprise) Q first-type bit block(s), the first bit block isone of the Q first-type bit block(s).

In one embodiment, the Q first-type response signaling(s) respectivelycorresponds(correspond) to the Q first-type bit block(s), of which thefirst response signaling corresponds to the first bit block.

In one embodiment, the Q first-type response signaling(s) respectivelycomprises(comprise) Q first-type information bit(s), the Q first-typeinformation bit(s) respectively corresponds(correspond) to the Qfirst-type bit block(s).

In one embodiment, the Q first-type information bit(s) is(are)respectively used for determining whether the Q first-type bit block(s)is(are) correctly decoded.

In one embodiment, the Q first-type response signaling(s) respectivelycomprises(comprise) Q first-type information bit(s), the Q first-typeinformation bit(s) is(are) respectively used for indicating that the Qfirst-type bit block(s) is(are) not correctly decoded.

In one embodiment, any of the Q first-type information bit(s) is usedfor determining whether a first-type bit bock corresponding to the anyfirst-type information bit out of the Q first-type bit block(s) iscorrectly received.

In one embodiment, the first response signaling is used for indicatingwhether the first bit block is correctly decoded.

In one embodiment, the first response signaling is used for indicatingthat the first bit block is not correctly decoded.

In one embodiment, what the phrase that the first bit block is correctlydecoded means includes decoding the first radio signal, and a result ofthe decoding of the first radio signal passes CRC check.

In one embodiment, what the phrase that the first bit block is notcorrectly decoded means includes decoding the first radio signal, and aresult of the decoding of the first radio signal fails to pass CRCcheck.

In one embodiment, what the phrase that the first bit block is correctlydecoded means includes decoding the first bit block, and a result of thedecoding of the first bit block passes CRC check.

In one embodiment, what the phrase that the first bit block is notcorrectly decoded means includes decoding the first bit block, and aresult of the decoding of the first bit block fails to pass CRC check.

Embodiment 7

Embodiment 7 illustrates a schematic diagram of a relation between Qfirst-type response signaling(s) and a first bitmap according to oneembodiment of the present disclosure, as shown in FIG. 7 . In FIG. 7 ,the box framed with broken lines represents the first bitmap in thepresent disclosure, and each slash-filled box framed with solid linesrepresents one of the Q first-type response signaling(s) of the presentdisclosure.

In Embodiment 7, the first information block comprises the first bitmap.The Q first-type response signaling(s) belongs(belong) to the firstbitmap, the first bitmap comprises B sequentially arranged binarybit(s), B is a positive integer no less than the Q.

In one embodiment, the number of binary bits comprised in the firstbitmap is equal to a number of the Z1 first-type characteristicsequence(s) corresponding to the first random-access channel.

In one embodiment, B binary bit(s) in the first bitmap respectivelycorresponds(correspond) to the Z1 first-type characteristic sequence(s)in the first random-access channel.

In one embodiment, the B is equal to the Z1.

In one embodiment, the B binary bit(s) in the first bitmap respectivelycorresponds(correspond) to B first-type radio signal(s), where the Qfirst-type radio signal(s) belongs(belong) to the B first-type radiosignal(s).

In one embodiment, the B first-type radio signal(s) respectivelycomprises(comprise) B first-type bit block(s), where the Q first-typebit block(s) belong to the B first-type bit block(s).

In one embodiment, the B is equal to the Q.

In one embodiment, any of the B binary bit(s) in the first bitmap isused for indicating whether a given first-type bit block in a givenfirst-type radio signal is correctly decoded, the given first-type radiosignal is one of the B first-type radio signal(s). Any binary bit of theB binary bit(s) corresponds to the given first-type radio signal, thegiven first-type bit block is one of the B first-type bit block(s).

In one embodiment, the B binary bit(s) in the first bitmap is(are)respectively used for indicating whether the B first-type bit block(s)in the B first-type radio signal(s) is(are) correctly decoded.

In one embodiment, when a value of one of the B binary bit(s) in thefirst bitmap is 0, a first-type bit block corresponding to the binarybit out of the B first-type bit block(s) is correctly decoded.

In one embodiment, when a value of one of the B binary bit(s) in thefirst bitmap is 0, a first-type characteristic sequence corresponding tothe binary bit out of the Z1 first-type characteristic sequence (s) isnot detected.

In one embodiment, when a value of one of the B binary bit(s) in thefirst bitmap is 0, a first-type characteristic sequence corresponding tothe binary bit out of the Z1 first-type characteristic sequence (s) isdetected, while a first-type bit block corresponding to the binary bitout of the B first-type bit block(s) is correctly decoded.

In one embodiment, when a value of one of the B binary bit(s) in thefirst bitmap is 1, a first-type bit block corresponding to the binarybit out of the B first-type bit block(s) is not correctly decoded.

In one embodiment, when a value of one of the B binary bit(s) in thefirst bitmap is 1, a first-type characteristic sequence corresponding tothe binary bit out of the Z1 first-type characteristic sequence (s) isdetected.

In one embodiment, when a value of one of the B binary bit(s) in thefirst bitmap is 1, a first-type characteristic sequence corresponding tothe binary bit out of the Z1 first-type characteristic sequence (s) isdetected, while a first-type bit block corresponding to the binary bitout of the B first-type bit block(s) is not correctly decoded.

In one embodiment, the above phrase that the first-type characteristicsequence is detected means that coherent detection is performed on thefirst-type characteristic sequence. The signal energy acquired byperforming the coherent detection on the first-type characteristicsequence exceeds a third given threshold.

In one embodiment, the above phrase that the first-type characteristicsequence is not detected means that coherent detection is performed onthe first-type characteristic sequence. The signal energy acquired byperforming the coherent detection on the first-type characteristicsequence does not exceed a third given threshold.

In one embodiment, the first bitmap comprises B HARQ-ACK informationbit(s), wherein the B HARQ-ACK information bit(s) is(are) used forindicating one of ACK and NACK.

In one embodiment, the Q first-type response signaling(s) is(are) Qbinary bit(s) in the first bitmap, the Q binary bit(s) belongs(belong)to the B binary bit(s), each of the Q binary bit(s) has a value of 1.

In one embodiment, the first bitmap only comprises the Q first-typeresponse signaling(s), and the Q first-type response signaling(s)corresponds(correspond) to the first PUSH Occasion.

In one embodiment, the Q first-type radio signal(s) is(are) transmittedon the first PUSCH Occasion.

In one embodiment, the first PUSCH Occasion is used for determining ascrambling sequence of the second radio signal.

In one embodiment, the first PUSCH Occasion is used for determining aCRC code of the first information block.

In one embodiment, the first PUSCH Occasion is used for determining atime-frequency resource unit occupied by the second radio signal.

In one embodiment, the Q first-type response signaling(s) is(are)respectively Q HARQ-ACK information bit(s), and Q HARQ-ACK informationbit(s) is(are) used for indicating one of ACK and NACK.

In one embodiment, the Q first-type response signaling(s) is(are)respectively Q HARQ-ACK information bit(s), and Q HARQ-ACK informationbit(s) is(are) used for indicating NACK.

In one embodiment, the first response signaling is a binary bit in thefirst bitmap, the value of the first response signaling is 0.

In one embodiment, the first response signaling is a binary bit in thefirst bitmap, the value of the first response signaling is 1.

In one embodiment, when the value of the first response signaling is 1,the first bit block is not correctly decoded.

In one embodiment, when the value of the first response signaling is 0,the first bit block is correctly decoded.

In one embodiment, the first response signaling is a HARQ-ACKinformation bit of the Q HARQ-ACK information bit(s), wherein theHARQ-ACK information bit is used for indicating NACK.

Embodiment 8

Embodiment 8 illustrates a schematic diagram of relation(s) between Qfirst-type response signaling(s) and Q characteristic sequenceidentifier(s) according to one embodiment of the present disclosure, asshown in FIG. 8 . In FIG. 8 , each box marked with solid linesrepresents any of the Q characteristic sequence identifier(s), of whichthe box filled with slashes represents the first sequence index.

In Embodiment 8, the first information block comprises the Q first-typeresponse signaling(s), the Q first-type response signaling(s)respectively comprising Q characteristic sequence identifier(s); thefirst response signaling is one of the Q first-type responsesignaling(s).

In one embodiment, the Q first-type response signaling(s) respectivelyindicates(indicate) that the Q first-type radio signal(s) is(are) notcorrectly received.

In one embodiment, the Q first-type response signaling(s) respectivelyindicates(indicate) that the Q first-type bit block(s) of the Qfirst-type radio signal(s) is(are) not correctly decoded.

In one embodiment, the Q first-type response signaling(s) respectivelyindicates(indicate) that Q first-type characteristic sequence(s) is(are)detected, and the Q first-type radio signal(s) is(are) not correctlyreceived; the Q first-type characteristic sequence(s) is(are)respectively associated with the Q first-type radio signal(s).

In one embodiment, the Q first-type response signaling(s) respectivelyindicates(indicate) that Q first-type characteristic sequence(s) is(are)detected, and the Q first-type bit block(s) of the Q first-type radiosignal(s) are not correctly decoded, the Q first-type characteristicsequence(s) being respectively associated with the Q first-type bitblock(s).

In one embodiment, the Q first-type characteristic sequence(s)belongs(belong) to the Z1 first-type characteristic sequence(s) on thefirst random-access channel.

In one embodiment, the Q first-type characteristic sequences aretransmitted by different UEs.

In one embodiment, the first sequence is one of the Q first-typecharacteristic sequence(s).

In one embodiment, the Q first-type characteristic sequenceidentifier(s) is(are) respectively used for identifying Q first-typecharacteristic sequence(s), wherein the Q first-type characteristicsequence(s) belongs(belong) to the Z1 first-type characteristicsequence(s) on the first random-access channel.

In one embodiment, the Q characteristic sequence identifier(s)respectively corresponds(correspond) to the Q first-type characteristicsequence(s), a given characteristic sequence identifier is any one ofthe Q first-type characteristic sequence identifier(s), a givenfirst-type characteristic sequence is one of the Q first-typecharacteristic sequence(s), the given characteristic sequence identifiercorresponds to the given first-type characteristic sequence and thegiven characteristic sequence identifier is used for indicating thegiven first-type characteristic sequence out of the Z1 first-typecharacteristic sequence(s).

In one embodiment, any of the Q characteristic sequence identifier(s) isa non-negative integer.

In one embodiment, any of the Q characteristic sequence identifier(s) isa RAPID.

In one embodiment, any of the Q characteristic sequence identifier(s) isan integer out of 0, 1, 2 . . . and Z1−1.

In one embodiment, any of the Q characteristic sequence identifier(s) isa non-negative integer out of Z1 non-negative integers ranging from 0 toZ1−1, which are arranged in an ascending order.

In one embodiment, any of the Q characteristic sequence identifier(s) isan integer out of 1, 2 . . . and Z1.

In one embodiment, any of the Q characteristic sequence identifier(s) isa positive integer out of Z1 positive integers ranging from 1 to Z1,which are arranged in an ascending order.

In one embodiment, the first response signaling is one of the Qcharacteristic sequence identifiers.

In one embodiment, the first response signaling is the first sequenceindex.

In one embodiment, the first response signaling is RAPID.

In one embodiment, the first sequence index is one of the Qcharacteristic sequence identifier(s).

In one embodiment, the first response signaling comprises the firstsequence index.

In one embodiment, the first response signaling is the first sequenceindex.

In one embodiment, the first response signaling comprises a positiveinteger number of bit(s).

In one embodiment, the first response signaling comprises 6 bits.

In one embodiment, the first response signaling indicates that the firstsequence is detected, and the first radio signal is not correctlyreceived.

In one embodiment, the first response signaling indicates that the firstsequence is detected, and the first bit block is not correctly decoded.

Embodiment 9

Embodiment 9 illustrates a schematic diagram of a relation between afirst information block and a first target signaling according to oneembodiment of the present disclosure, as shown in FIG. 9 . In FIG. 9 ,the large box marked with broken lines represents a control signalingdomain, the ellipsis represents the first information block in thepresent disclosure, and the small box filled with slashes represents thefirst target signaling.

In Embodiment 9, the first information block in the present disclosurecomprises a first target signaling, the first target signalingcorresponding to the first sequence; the first target signaling is usedfor determining that the first bit block is not correctly decoded; atarget receiver of the first information block is the first node.

In one embodiment, the first target signaling comprises one or morefields of a MAC layer signaling.

In one embodiment, the first target signaling comprises one or morefields of a PHY layer signaling.

In one embodiment, the first target signaling comprises one or morefields of a piece of DCI.

In one embodiment, the first target signaling is a piece of DCI.

In one embodiment, the first target signaling comprises one or morefields of a piece of SCI.

In one embodiment, the first target signaling is a piece of SCI.

In one embodiment, the first target signaling is transmitted on aControl Resource Set (CORESET).

In one embodiment, the first target signaling is transmitted on a PDCCH.

In one embodiment, the first target signaling is transmitted on a PSCCH.

In one embodiment, the first target signaling is UE-specific.

In one embodiment, the first target signaling is unicast.

In one embodiment, the first target signaling is dynamically configured.

In one embodiment, the first target signaling is semi-staticallyconfigured.

In one embodiment, the first target signaling comprises a positiveinteger number of bits, the positive integer number of bits comprised bythe first target signaling belong to the first information block.

In one embodiment, the first target signaling is used for generating thefirst information block.

In one embodiment, the first target signaling is used for determining ascrambling sequence of the first information block.

In one embodiment, the first target signaling is used for determining ascrambling sequence of the second radio signal; the first informationblock is used for generating the second radio signal.

In one embodiment, the first target signaling is used for indicatingthat the first sequence is correctly received.

In one embodiment, the first target signaling carries the first sequenceindex.

In one embodiment, the first sequence index belongs to the positiveinteger number of bit(s) comprised in the first target signaling.

In one embodiment, the first sequence index is used for determining thefirst information block out of a positive integer number of first-typeinformation block(s), the first information block is one of the positiveinteger number of first-type information block(s); the positive integernumber of first-type information block(s) belong to the second radiosignal, and the first information block comprises the first targetsignaling.

In one embodiment, the first sequence index is used for determining ascrambling sequence of the first information block.

In one embodiment, the first sequence index is used for determining ascrambling sequence of the second radio signal, the first informationblock in the second radio signal comprises the first target signaling.

In one embodiment, the first target signaling is used for indicatingthat the first bit block is not correctly decoded.

In one embodiment, the first target signaling is used for indicatingthat the first sequence is correctly received, and that the first bitblock is not correctly decoded.

In one embodiment, the first sequence index is used for scrambling thesecond radio signal, while the first target signaling is used forindicating that the first bit block is not correctly decoded.

In one embodiment, the first sequence index is used for determining atime-frequency resource unit occupied by the second radio signal, whilethe first target signaling is used for indicating that the first bitblock is not correctly decoded.

In one embodiment, the first target signaling comprises a firstindicating bit; the first indicating bit has a value of 0, whichindicates that the first bit block is not correctly received.

In one embodiment, the first target signaling comprises a firstindicating bit; the first indicating bit has a value of 1, whichindicates that the first bit block is correctly received.

In one embodiment, the first target signaling comprises a firstindicating bit; the value of the first indicating bit is reversed, whichindicates that the first bit block is correctly received.

In one embodiment, the first target signaling comprises a firstindicating bit; the value of the first indicating bit is not reversed,which indicates that the first bit block is not correctly received.

In one embodiment, what being reversed means is that the value ischanged from 0 to 1, or the value is changed from 1 to 0.

In one embodiment, what being reversed means is that the value ischanged from positive to negative, or the value is changed from negativeto positive.

In one embodiment, what being not reversed means is that the value staysunchanged.

In one embodiment, the first target signaling comprises a New DataIndicator (NDI).

In one embodiment, the first target signaling comprises HARQ-ACKinformation.

In one embodiment, the first target signaling comprises only NACK ofHARQ-ACK information.

In one embodiment, the first target signaling is used for indicatingtransmission parameters of the third radio signal.

In one embodiment, a target receiver of the second radio signal is thefirst node, the second radio signal comprising the first informationblock.

In one embodiment, target receivers of the second radio signal includeY1 communication nodes, the first node is one of the Y1 communicationnodes included by the target receivers of the second radio signal; Y1 isa positive integer greater than 1.

In one embodiment, a target receiver of the second radio signal onlyincludes one communication node; the communication node included by thetarget receiver of the second radio signal is the first node.

In one embodiment, the second radio signal comprises the firstidentification.

In one embodiment, the first identification is used for scrambling thesecond radio signal.

In one embodiment, target receivers of the first information blockinclude Y2 communication nodes, the first node is one of the Y2communication nodes included by the target receivers of the firstinformation block; Y2 is a positive integer greater than 1.

In one embodiment, a target receiver of the first information block onlyincludes one communication node; the communication node included by thetarget receiver of the first information block is the first node.

In one embodiment, the first information block comprises the firstidentification.

In one embodiment, the first identification belongs to a positiveinteger number of bits comprised by the first information block.

In one embodiment, the first identification is used for scrambling thefirst information block.

Embodiment 10

Embodiment 10 illustrates a flowchart of determining a first candidatechannel according to one embodiment of the present disclosure, as shownin FIG. 10 . In FIG. 10 , a first sequence and a first radio signal arereceived in step S1001; whether a first sequence is correctly receivedis determined in step S1002; if yes, whether a first bit block iscorrectly decoded is determined in step S1003; if yes, a secondcandidate channel is determined in step S1004; if no, the secondcandidate channel is determined in step S1005.

In Embodiment 10, a first blind detection and a second blind detectionare respectively performed on a first candidate channel and a secondcandidate channel in the present disclosure; the first radio signal isused for triggering the first blind detection and the second blinddetection; the second radio signal is detected on the first candidatechannel.

In one embodiment, a time-frequency resource unit occupied by the firstcandidate channel is different from a time-frequency resource unitoccupied by the second candidate channel.

In one embodiment, a time domain resource unit occupied by the firstcandidate channel is different from a time domain resource unit occupiedby the second candidate channel.

In one embodiment, a frequency domain resource unit occupied by thefirst candidate channel is different from a frequency domain resourceunit occupied by the second candidate channel.

In one embodiment, the first candidate channel includes PDCCH, while thesecond candidate channel includes PDSCH.

In one embodiment, the first candidate channel includes NPDCCH, whilethe second candidate channel includes NPDSCH.

In one embodiment, the first candidate channel includes PSCCH, while thesecond candidate channel includes PSSCH.

In one embodiment, the first candidate channel includes PDCCH, while thesecond candidate channel includes PDCCH and PDSCH.

In one embodiment, the first candidate channel includes NPDCCH, whilethe second candidate channel includes NPDCCH and PDSCH.

In one embodiment, the first candidate channel includes PSCCH, while thesecond candidate channel includes PSCCH and PSSCH.

In one embodiment, the first candidate channel does not include PDSCH.

In one embodiment, the first candidate channel does not include NPDSCH.

In one embodiment, the first candidate channel does not include PSSCH.

In one embodiment, the first candidate channel includes physicalchannel, while the second candidate channel includes transport channel.

In one embodiment, the first candidate channel includes physicalchannel, while the second candidate channel includes logical channel.

In one embodiment, the first candidate channel includes PDCCH, while thesecond candidate channel includes DL-SCH.

In one subembodiment, the first candidate channel does not includeDL-SCH.

In one embodiment, the first candidate channel is used for transmittinginformation to a communication node, while the second candidate channelis used for transmitting information to a plurality of communicationnodes.

In one embodiment, the first candidate channel is UE-specific, while thesecond candidate channel is cell-specific.

In one embodiment, the first candidate channel is used for unicasttransmission, while the second candidate channel is used for broadcasttransmission.

In one embodiment, the first candidate channel is used for unicasttransmission, while the second candidate channel is used for groupcasttransmission.

In one embodiment, the first candidate channel and the second candidatechannel are both transmitted via broadcast.

In one embodiment, the first candidate channel and the second candidatechannel are both cell-specific.

In one embodiment, the first blind detection includes: before the secondradio signal is correctly received on the first candidate channel, it isimpossible to determine whether the second radio signal has beentransmitted.

In one embodiment, the first blind detection includes: before the secondradio signal is correctly received on the first candidate channel, it isimpossible to determine whether the second radio signal has beentransmitted on the first candidate channel.

In one embodiment, the first blind detection includes performing N1times of decoding on the first candidate channel, where N1 is a positiveinteger greater than 1; any of the N1 times of decoding includesdetermining whether the second radio signal is correctly received basedon whether a result of the decoding on the second radio signal haspassed CRC check.

In one embodiment, the N1 times of decoding are based on Viterbialgorithm.

In one embodiment, any of the N1 times of decoding is based on iterativealgorithm.

In one embodiment, the N1 times of decoding are based on beliefpropagation (BP) algorithm.

In one embodiment, the N1 times of decoding are based on log likelihoodradio (LLR)-BP algorithm.

In one embodiment, the first blind detection includes: performing N2times of sequence coherent detections on the first candidate channel, N2being a positive integer number greater than 1; any of the N2 times ofsequence coherent detections includes determining whether the secondradio signal is transmitted according to whether a result of thesequence coherent detection exceeds a second threshold.

In one embodiment, the first blind detection includes: performing N2times of sequence coherent detections on the first candidate channel, N2being a positive integer number greater than 1; any of the N2 times ofsequence coherent detections includes determining whether the secondradio signal is transmitted on the first candidate channel according towhether a result of the sequence coherent detection exceeds a secondthreshold.

In one embodiment, a fourth radio signal is transmitted on the secondcandidate channel.

In one embodiment, the second blind detection includes: before thefourth radio signal is correctly received on the second candidatechannel, it is impossible to determine whether the fourth radio signalis transmitted.

In one embodiment, the second blind detection includes: before thefourth radio signal is correctly received on the second candidatechannel, it is impossible to determine whether the fourth radio signalis transmitted on the second candidate channel.

In one embodiment, the second blind detection includes: performing N3times of decoding on the second candidate channel, wherein N3 is apositive integer greater than 1; any of the N3 times of decodingincludes determining whether the fourth radio signal is correctlyreceived based on whether a result of the decoding on the fourth radiosignal has passed CRC check.

In one embodiment, the N3 times of decoding are based on Viterbialgorithm.

In one embodiment, any of the N3 times of decoding is based on iterativealgorithm.

In one embodiment, the N3 times of decoding are based on BP algorithm.

In one embodiment, the N3 times of decoding are based on LLR-BPalgorithm.

In one embodiment, the second blind detection includes: N4 times ofsequence coherent detections on the second candidate channel, N4 being apositive integer number greater than 1; any of the N4 times of sequencecoherent detections includes determining whether the fourth radio signalis transmitted according to whether a result of the sequence coherentdetection exceeds a second threshold.

In one embodiment, the second blind detection includes: N4 times ofsequence coherent detections on the second candidate channel, N4 being apositive integer number greater than 1; any of the N4 times of sequencecoherent detections includes determining whether the fourth radio signalis transmitted on the second candidate channel according to whether aresult of the sequence coherent detection exceeds a second threshold.

In one embodiment, when the first radio signal is transmitted, the firstblind detection and the second blind detection are performed.

In one embodiment, when the first radio signal is transmitted, the firstblind detection is performed on the first candidate channel, while thesecond blind detection is performed on the second candidate channel.

In one embodiment, only when the first radio signal is transmitted canthe first blind detection and the second blind detection be performed.

In one embodiment, only when the first radio signal is transmitted canthe first blind detection be performed on the first candidate channeland the second blind detection performed on the second candidatechannel.

In one embodiment, when the first radio signal is not transmitted, thefirst blind detection and the second blind detection cannot beperformed.

In one embodiment, when the first radio signal is not transmitted,performing of the first blind detection on the first candidate channeland the second detection on the second candidate channel is dropped.

In one embodiment, the phrase that the second radio signal is detectedon the first candidate channel means that the second radio signal istransmitted only on the first candidate channel between the firstcandidate channel and the second candidate channel.

In one embodiment, the phrase that the second radio signal is detectedon the first candidate channel means that the second radio signal isreceived only on the first candidate channel between the first candidatechannel and the second candidate channel.

In one embodiment, when the first sequence is not correctly received,transmission of the second radio signal on the first candidate channelis dropped.

In one embodiment, when the first sequence is correctly received, andthe first bit block is not correctly decoded, then the second radiosignal is transmitted on the first candidate channel.

Embodiment 11

Embodiment 11 illustrates a schematic diagram of respective relations ofa first sequence, a first radio signal, a first signaling and a secondradio signal with a first time window according to one embodiment of thepresent disclosure, as shown in FIG. 11 . In FIG. 11 , the horizontalaxis represents time; the square filled with slashes represents a firstsequence, the square filled with grids represents a first radio signal,the blank square marked with solid lines represents a first candidatechannel, and the blank square marked with broken lines represents asecond candidate channel; a time gap between an end of the time domainresource unit occupied by the first radio signal and a start of thefirst time window is a first time gap.

In Embodiment 11, a first signaling is monitored in the first timewindow of the present disclosure, a time-frequency resource unitoccupied by the first candidate channel and a time-frequency resourceunit occupied by the second candidate channel both belong to the firsttime window; at least one of the time-frequency resource unit occupiedby the first sequence and the time-frequency resource unit occupied bythe first radio signal is used for determining the first time window;the first signaling is used for determining scheduling information ofthe second radio signal.

In one embodiment, the scheduling information of the second radio signalcomprises at least one of the time-frequency resource unit occupied bythe second radio signal, the MCS employed by the second radio signal orthe RV employed by the second radio signal.

In one embodiment, the scheduling information of the second radio signalcomprises the time-frequency resource unit occupied by the second radiosignal.

In one embodiment, the scheduling information of the second radio signalcomprises the MCS employed by the second radio signal

In one embodiment, the scheduling information of the second radio signalcomprises the RV employed by the second radio signal.

In one embodiment, the first node monitors the first signaling withinthe first time window.

In one embodiment, the monitoring action refers to receiving based onblind detection, that is, the first node receives a signal within thefirst time window and performs decoding, if the decoding is determinedas correct according to a CRC bit, then it is determined that the firstsignaling is successfully received in the first time window; if thedecoding is determined as incorrect according to the CRC bit, then it isdetermined that the first signaling is not successfully detected in thefirst time window.

In one embodiment, the monitoring action refers to receiving based oncoherent detection, that is, the first node performs coherent receptionon a radio signal within the first time window, employing an RS sequencecorresponding to the DMRS of the first signaling, and then measuressignal energy acquired after the coherent reception; if the signalenergy acquired after the coherent reception is greater than a firstgiven threshold, then it is determined that the first signaling issuccessfully received within the first time window; if the signal energyacquired after the coherent reception is no greater than a first giventhreshold, then it is determined that the first signaling is notsuccessfully received within the first time window.

In one embodiment, the monitoring action refers to receiving based onenergy detection, that is, the first node senses energy of a radiosignal within the first time window and averages the energy in time toacquire a received energy; if the received energy is greater than asecond given threshold, it is then determined that the first signalingis successfully received in the first time window; if the receivedenergy is no greater than a second given threshold, it is thendetermined that the first signaling is not successfully received in thefirst time window.

In one embodiment, the phrase that the first signaling is detected meansthat after the first signaling is received based on a blind detection,the decoding is determined as correct according to a CRC bit.

In one embodiment, a time-frequency resource unit occupied by the firstradio signal is used for determining a start of the first time window.

In one embodiment, a time-frequency resource unit occupied by the firstradio signal comprises at least one of a time domain resource unitoccupied by the first radio signal and a frequency domain resource unitoccupied by the first radio signal.

In one embodiment, a time-frequency resource unit occupied by the firstradio signal comprises a time domain resource unit occupied by the firstradio signal.

In one embodiment, a time-frequency resource unit occupied by the firstradio signal comprises a frequency domain resource unit occupied by thefirst radio signal.

In one embodiment, a time-frequency resource unit occupied by the firstradio signal a time domain resource unit occupied by the first radiosignal and a frequency domain resource unit occupied by the first radiosignal.

In one embodiment, a time-frequency resource unit occupied by the firstsequence is used for determining a start of the first time window.

In one embodiment, a time-frequency resource unit occupied by the firstsequence comprises at least one of a time domain resource unit occupiedby the first sequence and a frequency domain resource unit occupied bythe first sequence.

In one embodiment, a time-frequency resource unit occupied by the firstsequence comprises a time domain resource unit occupied by the firstsequence.

In one embodiment, a time-frequency resource unit occupied by the firstsequence comprises a frequency domain resource unit occupied by thefirst sequence.

In one embodiment, a time gap between an end of a time domain resourceunit occupied by the first sequence and a start of the first timewindow; the length of the first time gap is no less than a first timethreshold, the first time threshold is pre-defined.

In one embodiment, a time gap between an end of a time domain resourceunit occupied by the first sequence and a start of the first timewindow; the length of the first time gap is no less than a first timethreshold, the first time threshold is configurable.

In one embodiment, a time gap between an end of a time domain resourceunit occupied by the first sequence and a start of the first timewindow; the length of the first time gap is no less than 1 ms.

In one embodiment, the first time threshold is related to an SCS ofsubcarriers occupied by the first signaling.

In one embodiment, the first time threshold is equal to a length of amulticarrier symbol of multicarrier symbols occupied by the firstsignaling.

Embodiment 12

Embodiment 12 illustrates a schematic diagram of a time-frequencyresource according to one embodiment of the present disclosure, as shownin FIG. 12 . In FIG. 12 , each small box marked with broken linesrepresents a Resource Element (RE), and the large box framed with thicksolid lines represents a time-frequency resource. In FIG. 12 , atime-frequency resource occupies K subcarrier(s) in frequency domain andL multicarrier symbol(s) in time domain; K and L are positive integers.In FIG. 12 , t₁, t₂ . . . and t_(L) respectively represent the Lmulticarrier symbol(s), while f₁, f₂ . . . and f_(K) respectivelyrepresent the K subcarrier(s).

In Embodiment 12, a time-frequency resource unit occupies the Ksubcarrier(s) in frequency domain and the L multicarrier symbol(s) intime domain, where the K and the L are positive integers.

In one embodiment, the K is equal to 12.

In one embodiment, the K is equal to 72.

In one embodiment, the K is equal to 127.

In one embodiment, the K is equal to 240.

In one embodiment, the L is equal to 1.

In one embodiment, the L is equal to 2.

In one embodiment, the L is no greater than 14.

In one embodiment, any of the L multicarrier symbol(s) is a FrequencyDivision Multiple Access (FDMA) symbol.

In one embodiment, any of the L multicarrier symbol(s) is an OrthogonalFrequency Division Multiplexing (OFDM) symbol.

In one embodiment, any of the L multicarrier symbol(s) is aSingle-Carrier Frequency Division Multiple Access (SC-FDMA) symbol.

In one embodiment, any of the L multicarrier symbol(s) is a DiscreteFourier Transform Spread Orthogonal Frequency Division Multiplexing(DFT-S-OFDM) symbol.

In one embodiment, any of the L multicarrier symbol(s) is a Filter BankMulti-Carrier (FBMC) symbol.

In one embodiment, any of the L multicarrier symbol(s) is an InterleavedFrequency Division Multiple Access (IFDMA) symbol.

In one embodiment, the time domain resource unit comprises a positiveinteger number of radio frame(s).

In one embodiment, the time domain resource unit comprises a positiveinteger number of subframe(s).

In one embodiment, the time domain resource unit comprises a positiveinteger number of slot(s).

In one embodiment, the time domain resource unit is a slot.

In one embodiment, the time domain resource unit comprises a positiveinteger number of multicarrier symbol(s).

In one embodiment, the frequency domain resource unit comprises apositive integer number of carrier(s).

In one embodiment, the frequency domain resource unit comprises apositive integer number of Bandwidth Part(s) (BWP).

In one embodiment, the frequency domain resource unit is a BWP.

In one embodiment, the frequency domain resource unit comprises apositive integer number of subchannel(s).

In one embodiment, the frequency domain resource unit is a subchannel.

In one embodiment, any of the positive integer number of subchannel(s)comprises a positive integer number of Resource Block(s) (RB).

In one embodiment, the subchannel comprises a positive integer number ofRB(s).

In one embodiment, any RB of the positive integer number of RB(s)comprises a positive integer number of subcarrier(s) in frequencydomain.

In one embodiment, any RB of the positive integer number of RB(s)comprises a12 subcarrier(s) in frequency domain.

In one embodiment, the subchannel comprises a positive integer number ofPRB(s).

In one embodiment, a number of PRB(s) comprised in the subchannel isvariable.

In one embodiment, any PRB of the positive integer number of RB(s)comprises a positive integer number of subcarrier(s) in frequencydomain.

In one embodiment, any PRB of the positive integer number of RB(s)comprises a12 subcarrier(s) in frequency domain.

In one embodiment, the frequency domain resource unit comprises apositive integer number of RB(s).

In one embodiment, the frequency domain resource unit is an RB.

In one embodiment, the frequency domain resource unit comprises apositive integer number of PRB(s).

In one embodiment, the frequency domain resource unit is a PRB.

In one embodiment, the frequency domain resource unit comprises apositive integer number of subcarrier(s).

In one embodiment, the frequency domain resource unit is a subcarrier.

In one embodiment, the time-frequency resource unit comprises the timedomain resource unit.

In one embodiment, the time-frequency resource unit comprises thefrequency domain resource unit.

In one embodiment, the time-frequency resource unit comprises the timedomain resource unit and the frequency domain resource unit.

In one embodiment, the time-frequency resource unit comprises R RE(s), Rbeing a positive integer.

In one embodiment, the time-frequency resource unit is composed of RRE(s), R being a positive integer.

In one embodiment, any of the R RE(s) occupies a multicarrier symbol intime domain, and occupies a subcarrier in frequency domain.

In one embodiment, the SCS is measured by Hz.

In one embodiment, the SCS is measured by kHz.

In one embodiment, the SCS is measured by MHz.

In one embodiment, the symbolic length of the multicarrier symbol ismeasured by sampling point.

In one embodiment, the symbolic length of the multicarrier symbol ismeasured by μs.

In one embodiment, the symbolic length of the multicarrier symbol ismeasured by ms.

In one embodiment, the SCS at least is one of 1.25 kHz, 2.5 kHz, 5 kHz,15 kHz, 30 kHz, 60 kHz, 120 kHz and 240 kHz.

In one embodiment, the time-frequency resource unit comprises the Ksubcarrier(s) and the L multicarrier symbol(s); a product of the K andthe L is no less than the R.

In one embodiment, the time-frequency resource unit does not compriseany RE allocated to Guard Period (GP).

In one embodiment, the time-frequency resource unit does not compriseany RE allocated to Reference Signal (RS).

In one embodiment, the time-frequency resource unit comprises a positiveinteger number of RB(s).

In one embodiment, the time-frequency resource unit belongs to one RB.

In one embodiment, the time-frequency resource unit is equivalent to oneRB in frequency domain.

In one embodiment, the time-frequency resource unit comprises 6 RBs infrequency domain.

In one embodiment, the time-frequency resource unit comprises 20 RBs infrequency domain.

In one embodiment, the time-frequency resource unit comprises a positiveinteger number of PRB(s).

In one embodiment, the time-frequency resource unit belongs to one PRB.

In one embodiment, the time-frequency resource unit is equivalent to onePRB in frequency domain.

In one embodiment, the time-frequency resource unit comprises a positiveinteger number of Virtual Resource Block(s) (VRB).

In one embodiment, the time-frequency resource unit belongs to one VRB.

In one embodiment, the time-frequency resource unit is equivalent to oneVRB in frequency domain.

In one embodiment, the time-frequency resource unit comprises a positiveinteger number of PRB pair(s).

In one embodiment, the time-frequency resource unit belongs to one PRBpair.

In one embodiment, the time-frequency resource unit is equivalent to onePRB pair in frequency domain.

In one embodiment, the time-frequency resource unit comprises a positiveinteger number of radio frame(s).

In one embodiment, the time-frequency resource unit belongs to one radioframe.

In one embodiment, the time-frequency resource unit is equivalent to oneradio frame in time domain.

In one embodiment, the time-frequency resource unit comprises a positiveinteger number of subframe(s).

In one embodiment, the time-frequency resource unit belongs to onesubframe.

In one embodiment, the time-frequency resource unit is equivalent to onesubframe in time domain.

In one embodiment, the time-frequency resource unit comprises a positiveinteger number of slot(s).

In one embodiment, the time-frequency resource unit belongs to one slot.

In one embodiment, the time-frequency resource unit is equivalent to oneslot in time domain.

In one embodiment, the time-frequency resource unit comprises a positiveinteger number of symbol(s).

In one embodiment, the time-frequency resource unit belongs to onesymbol.

In one embodiment, the time-frequency resource unit is equivalent to onesymbol in time domain.

In one embodiment, duration time of the time domain resource unit in thepresent disclosure is equal to duration time of the time-frequencyresource unit in the present disclosure in time domain.

In one embodiment, a number of subcarriers occupied by the frequencydomain resource unit in the present disclosure is equal to a number ofsubcarriers occupied by the time-frequency resource unit in the presentdisclosure in frequency domain.

Embodiment 13

Embodiment 13 illustrates a structure block diagram of a processingdevice in a first node, as shown in FIG. 13 . In Embodiment 13, a firstnode processing device 1300 mainly consists of a first transmitter 1301,a first receiver 1302 and a second transmitter 1303.

In one embodiment, the first transmitter 1301 comprises at least one ofthe antenna 452, the transmitter/receiver 454, the multi-antennatransmitting processor 457, the transmitting processor 468, thecontroller/processor 459, the memory 460 or the data source 467 in FIG.4 of the present disclosure.

In one embodiment, the first receiver 1302 comprises at least one of theantenna 452, the transmitter/receiver 454, the multi-antenna receivingprocessor 458, the receiving processor 456, the controller/processor459, the memory 460 or the data source 467 in FIG. 4 of the presentdisclosure.

In one embodiment, the second transmitter 1303 comprises at least one ofthe antenna 452, the transmitter/receiver 454, the multi-antennatransmitting processor 457, the transmitting processor 468, thecontroller/processor 459, the memory 460 or the data source 467 in FIG.4 of the present disclosure.

In Embodiment 13, the first transmitter 1301 transmits a first sequenceand a first radio signal, the first sequence being associated with thefirst radio signal, the first sequence being transmitted on a firstrandom-access channel, and a first bit block being used for generatingthe first radio signal; the first receiver 1302 receives a second radiosignal, the second radio signal comprising a first information block;the second transmitter 1303 transmits a second sequence and a thirdradio signal, the second sequence being associated with the third radiosignal, the second sequence being transmitted on a second random-accesschannel, and the first bit block being used for generating the thirdradio signal; the first radio signal is used for carrying a firstidentification; the first information block is used for triggering atransmission of the third radio signal; the first information blockcomprises a first sequence index, the first sequence index correspondingto the first sequence; the first information block is used fordetermining transmission parameters of the third radio signal.

In one embodiment, the first information block comprises Q first-typeresponse signaling(s), a first response signaling is one of the Qfirst-type response signaling(s), the first response signalingcorresponds to the first sequence, and the first response signaling isused for determining that the first bit block is not correctly decoded,Q is a positive integer.

In one embodiment, the first information block comprises a first targetsignaling, the first target signaling corresponds to the first sequence,the first target signaling is used for determining that the first bitblock is not correctly decoded, a target receiver of the firstinformation block is the first node.

In one embodiment, the first receiver 1302 performs a first blinddetection and a second blind detection respectively on a first candidatechannel and a second candidate channel; the first radio signal is usedfor triggering the first blind detection and the second blind detection;the second radio signal is detected on the first candidate channel.

In one embodiment, the first receiver 1302 receives a first signaling ina first time window; a time domain resource unit occupied by the firstcandidate channel and a time domain resource unit occupied by the secondcandidate channel belong to the first time window; at least one of atime-frequency resource unit occupied by the first sequence and atime-frequency resource unit occupied by the first radio signal is usedfor determining the first time window; the first signaling is used fordetermining scheduling information of the second radio signal.

In one embodiment, the first node processing device 1300 is a UE.

In one embodiment, the first node processing device 1300 is a relaynode.

Embodiment 14

Embodiment 14 illustrates a structure block diagram of a processingdevice in a second node, as shown in FIG. 14 . In FIG. 14 , a secondnode processing device 1400 mainly consists of a second receiver 1401, athird transmitter 1402 and a third receiver 1403.

In one embodiment, the second receiver 1401 comprises at least one ofthe antenna 420, the transmitter/receiver 418, the multi-antennareceiving processor 472, the receiving processor 470, thecontroller/processor 475 or the memory 476 in FIG. 4 of the presentdisclosure.

In one embodiment, the third transmitter 1402 comprises at least one ofthe antenna 420, the transmitter/receiver 418, the multi-antennatransmitting processor 471, the transmitting processor 416, thecontroller/processor 475 or the memory 476 in FIG. 4 of the presentdisclosure.

In one embodiment, the third receiver 1403 comprises at least one of theantenna 420, the transmitter/receiver 418, the multi-antenna receivingprocessor 472, the receiving processor 470, the controller/processor 475or the memory 476 in FIG. 4 of the present disclosure.

In Embodiment 14, the second receiver 1401 receives a first sequence anda first radio signal, the first sequence being associated with the firstradio signal, the first sequence being transmitted on a firstrandom-access channel, and a first bit block being used for generatingthe first radio signal; the third transmitter 1402 transmits a secondradio signal, the second radio signal comprising a first informationblock; the third receiver 1403 receives a second sequence and a thirdradio signal, the second sequence being associated with the third radiosignal, the second sequence being transmitted on a second random-accesschannel, and the first bit block being used for generating the thirdradio signal; the first radio signal is used for carrying a firstidentification; the first information block is used for triggering atransmission of the third radio signal; the first information blockcomprises a first sequence index, the first sequence index correspondingto the first sequence; the first information block is used fordetermining transmission parameters of the third radio signal.

In one embodiment, the first information block comprises Q first-typeresponse signaling(s), a first response signaling is one of the Qfirst-type response signaling(s), the first response signalingcorresponds to the first sequence, and the first response signaling isused for determining that the first bit block is not correctly decoded,Q is a positive integer.

In one embodiment, the first information block comprises a first targetsignaling, the first target signaling corresponds to the first sequence,the first target signaling is used for determining that the first bitblock is not correctly decoded, a target receiver of the firstinformation block is the first node.

In one embodiment, the third transmitter 1402 determines a firstcandidate channel between a first candidate channel and a secondcandidate channel; a result of detection on the first radio signal isused for determining the first candidate channel; the second radiosignal is transmitted on the first candidate channel.

In one embodiment, the third transmitter 1402 transmits a firstsignaling in a first time window; a time domain resource unit occupiedby the first candidate channel and a time domain resource unit occupiedby the second candidate channel belong to the first time window; atleast one of a time-frequency resource unit occupied by the firstsequence and a time-frequency resource unit occupied by the first radiosignal is used for determining the first time window; the firstsignaling is used for determining scheduling information of the secondradio signal.

In one embodiment, the second node processing device 1400 is a UE.

In one embodiment, the second node processing device 1400 is a relaynode.

The ordinary skill in the art may understand that all or part of stepsin the above method may be implemented by instructing related hardwarethrough a program. The program may be stored in a computer readablestorage medium, for example Read-Only-Memory (ROM), hard disk or compactdisc, etc. Optionally, all or part of steps in the above embodimentsalso may be implemented by one or more integrated circuits.Correspondingly, each module unit in the above embodiment may berealized in the form of hardware, or in the form of software functionmodules. The present disclosure is not limited to any combination ofhardware and software in specific forms. The first node in the presentdisclosure includes but is not limited to mobile phones, tabletcomputers, notebooks, network cards, low-consumption equipment, enhancedMTC (eMTC) equipment, NB-IOT terminals, vehicle-mounted equipment,aircrafts, airplanes, unmanned aerial vehicles, telecontrolledaircrafts, etc. The second node in the present disclosure includes butis not limited to mobile phones, tablet computers, notebooks, networkcards, low-consumption equipment, enhanced MTC (eMTC) equipment, NB-IOTterminals, vehicle-mounted equipment, aircrafts, airplanes, unmannedaerial vehicles, telecontrolled aircrafts, etc. The UE or terminal inthe present disclosure includes but is not limited to mobile phones,tablet computers, notebooks, network cards, low-consumption equipment,enhanced MTC (eMTC) equipment, NB-IOT terminals, vehicle-mountedequipment, aircrafts, airplanes, unmanned aerial vehicles,telecontrolled aircrafts, etc. The base station or network sideequipment in the present disclosure includes but is not limited tomacro-cellular base stations, micro-cellular base stations, home basestations, relay base station, eNB, gNB, Transmitter Receiver Point(TRP), GNSS, relay satellites, satellite base station, aerial basestation, and other radio communication equipment.

The above are merely the preferred embodiments of the present disclosureand are not intended to limit the scope of protection of the presentdisclosure. Any modification, equivalent substitute and improvement madewithin the spirit and principle of the present disclosure are intendedto be included within the scope of protection of the present disclosure.

1. A method in a first node for wireless communication, comprising:transmitting a first sequence and a first radio signal, the firstsequence being associated with the first radio signal, the firstsequence is used for determining a time-frequency resource unit occupiedby the first radio signal, the first sequence is used for determining ascrambling sequence of the first radio signal; the first sequence beingtransmitted on a first random-access channel, and a first bit blockbeing used for generating the first radio signal; the first sequence isa random access preamble; the first random-access channel is a PRACH(Physical Random Access Channel) occasion; the first radio signal istransmitted on a PUSCH (Physical Uplink Shared Channel); receiving asecond radio signal, the second radio signal comprising a firstinformation block; the second radio signal comprises one or more fieldsof an RRC (Radio Resource Control) IE (Information Element); andtransmitting a second sequence and a third radio signal, the secondsequence being associated with the third radio signal, the secondsequence is used for determining a time-frequency resource unit occupiedby the third radio signal, the second sequence is used for determining ascrambling sequence of the third radio signal; the second sequence beingtransmitted on a second random-access channel, and the first bit blockbeing used for generating the third radio signal; the second sequence isa random access preamble; the second random-access channel is a PRACHoccasion; the third radio signal is transmitted on a PUSCH; wherein thefirst radio signal comprises a first identification, the firstidentification is used for determining the time-frequency resource unitoccupied by the first radio signal; the first information block is usedfor triggering a transmission of the third radio signal; the firstinformation block comprises a first sequence index, the first sequenceindex corresponds to the first sequence; the first information block isused for determining transmission parameters of the third radio signal.2. The method according to claim 1, wherein the first information blockcomprises Q first-type response signaling, a first response signaling isone of the Q first-type response signaling, the first response signalingcorresponds to the first sequence, and the first response signaling isused for determining that the first bit block is not correctly decoded,Q is a positive integer.
 3. The method according to claim 1, wherein thefirst information block comprises a first target signaling, the firsttarget signaling corresponds to the first sequence, the first targetsignaling is used for determining that the first bit block is notcorrectly decoded, a target receiver of the first information block isthe first node.
 4. The method according to claim 1, comprising:performing a first blind detection and a second blind detectionrespectively on a first candidate channel and a second candidatechannel; wherein the first radio signal is used for triggering the firstblind detection and the second blind detection; the second radio signalis detected on the first candidate channel.
 5. The method according toclaim 4, comprising: receiving a first signaling in a first time window;wherein a time domain resource unit occupied by the first candidatechannel and a time domain resource unit occupied by the second candidatechannel both belong to the first time window; at least one of atime-frequency resource unit occupied by the first sequence and atime-frequency resource unit occupied by the first radio signal is usedfor determining the first time window; the first signaling is used fordetermining scheduling information of the second radio signal.
 6. Amethod in a second node for wireless communication, comprising:receiving a first sequence and a first radio signal, the first sequencebeing associated with the first radio signal, the first sequence is usedfor determining a time-frequency resource unit occupied by the firstradio signal, the first sequence is used for determining a scramblingsequence of the first radio signal; the first sequence being transmittedon a first random-access channel, and a first bit block being used forgenerating the first radio signal; the first sequence is a random accesspreamble; the first random-access channel is a PRACH (Physical RandomAccess Channel) occasion; the first radio signal is transmitted on aPUSCH (Physical Uplink Shared Channel); transmitting a second radiosignal, the second radio signal comprising a first information block;the second radio signal comprises one or more fields of an RRC (RadioResource Control) IE (Information Element); and receiving a secondsequence and a third radio signal, the second sequence being associatedwith the third radio signal, the second sequence is used for determininga time-frequency resource unit occupied by the third radio signal, thesecond sequence is used for determining a scrambling sequence of thethird radio signal; the second sequence being transmitted on a secondrandom-access channel, and the first bit block being used for generatingthe third radio signal; the second sequence is a random access preamble;the second random-access channel is a PRACH occasion; the third radiosignal is transmitted on a PUSCH; wherein the first radio signalcomprises a first identification, the first identification is used fordetermining the time-frequency resource unit occupied by the first radiosignal; the first information block is used for triggering atransmission of the third radio signal; the first information blockcomprises a first sequence index, the first sequence index correspondsto the first sequence; the first information block is used fordetermining transmission parameters of the third radio signal.
 7. Themethod according to claim 6, wherein the first information blockcomprises Q first-type response signaling, a first response signaling isone of the Q first-type response signaling, the first response signalingcorresponds to the first sequence, and the first response signaling isused for determining that the first bit block is not correctly decoded,Q is a positive integer.
 8. The method according to claim 6, wherein thefirst information block comprises a first target signaling, the firsttarget signaling corresponds to the first sequence, the first targetsignaling is used for determining that the first bit block is notcorrectly decoded, a target receiver of the first information block is afirst node.
 9. The method according to claim 6, comprising: determininga first candidate channel out of the first candidate channel and asecond candidate channel; wherein a result of detection of the firstradio signal is used for determining the first candidate channel; thesecond radio signal is transmitted on the first candidate channel. 10.The method according to claim 9, comprising: transmitting a firstsignaling in first time window; wherein a time domain resource unitoccupied by the first candidate channel and a time domain resource unitoccupied by the second candidate channel both belong to the first timewindow; at least one of a time-frequency resource unit occupied by thefirst sequence and a time-frequency resource unit occupied by the firstradio signal is used for determining the first time window; the firstsignaling is used for determining scheduling information of the secondradio signal.
 11. A first node for wireless communication, comprising: afirst transmitter, which transmits a first sequence and a first radiosignal, the first sequence being associated with the first radio signal,the first sequence is used for determining a time-frequency resourceunit occupied by the first radio signal, the first sequence is used fordetermining a scrambling sequence of the first radio signal; the firstsequence being transmitted on a first random-access channel, and a firstbit block being use for generating the first radio signal; the firstsequence is a random access preamble; the first random-access channel isa PRACH (Physical Random Access Channel) occasion; the first radiosignal is transmitted on a PUSCH (Physical Uplink Shared Channel); afirst receiver, which receives a second radio signal, the second radiosignal comprising a first information block; the second radio signalcomprises one or more fields of an RRC (Radio Resource Control) IE(Information Element); and a second transmitter, which transmits asecond sequence and a third radio signal, the second sequence beingassociated with the third radio signal, the second sequence is used fordetermining a time-frequency resource unit occupied by the third radiosignal, the second sequence is used for determining a scramblingsequence of the third radio signal; the second sequence beingtransmitted on a second random-access channel, and the first bit blockbeing used for generating the third radio signal; the second sequence isa random access preamble; the second random-access channel is a PRACHoccasion; the third radio signal is transmitted on a PUSCH; wherein thefirst radio signal comprises a first identification, the firstidentification is used for determining the time-frequency resource unitoccupied by the first radio signal; the first information block is usedfor triggering a transmission of the third radio signal; the firstinformation block comprises a first sequence index, the first sequenceindex corresponds to the first sequence; the first information block isused for determining transmission parameters of the third radio signal.12. The first node according to claim 11, wherein the first informationblock comprises Q first-type response signaling, a first responsesignaling is one of the Q first-type response signaling, the firstresponse signaling corresponds to the first sequence, and the firstresponse signaling is used for determining that the first bit block isnot correctly decoded, Q is a positive integer.
 13. The first nodeaccording to claim 11, wherein the first information block comprises afirst target signaling, the first target signaling corresponds to thefirst sequence, the first target signaling is used for determining thatthe first bit block is not correctly decoded, a target receiver of thefirst information block is the first node.
 14. The first node accordingto claim 11, comprising: the first receiver performing a first blinddetection and a second blind detection respectively on a first candidatechannel and a second candidate channel; wherein the first radio signalis used for triggering the first blind detection and the second blinddetection; the second radio signal is detected on the first candidatechannel.
 15. The first node according to claim 14, comprising: the firstreceiver receiving a first signaling in a first time window, wherein atime domain resource unit occupied by the first candidate channel and atime domain resource unit occupied by the second candidate channel bothbelong to the first time window; at least one of a time-frequencyresource unit occupied by the first sequence and a time-frequencyresource unit occupied by the first radio signal is used for determiningthe first time window; the first signaling is used for determiningscheduling information of the second radio signal.
 16. A second node forwireless communication, comprising: a second receiver, which receives afirst sequence and a first radio signal, the first sequence beingassociated with the first radio signal, the first sequence is used fordetermining a time-frequency resource unit occupied by the first radiosignal, the first sequence is used for determining a scrambling sequenceof the first radio signal; the first sequence being transmitted on afirst random-access channel, and a first bit block being used forgenerating the first radio signal; the first sequence is a random accesspreamble; the first random-access channel is a PRACH (Physical RandomAccess Channel) occasion; the first radio signal is transmitted on aPUSCH (Physical Uplink Shared Channel); a third transmitter, whichtransmits a second radio signal, the second radio signal comprising afirst information block; the second radio signal comprises one or morefields of an RRC (Radio Resource Control) IE (Information Element); anda third receiver, which receives a second sequence and a third radiosignal, the second sequence being associated with the third radiosignal, the second sequence is used for determining a time-frequencyresource unit occupied by the third radio signal, the second sequence isused for determining a scrambling sequence of the third radio signal;the second sequence being transmitted on a second random-access channel,and the first bit block being used for generating the third radiosignal; the second sequence is a random access preamble; the secondrandom-access channel is a PRACH occasion; the third radio signal istransmitted on a PUSCH; wherein the first radio signal comprises a firstidentification, the first identification is used for determining thetime-frequency resource unit occupied by the first radio signal; thefirst information block is used for triggering a transmission of thethird radio signal; the first information block comprises a firstsequence index, the first sequence index corresponds to the firstsequence; the first information block is used for determiningtransmission parameters of the third radio signal.
 17. The second nodeaccording to claim 16, wherein the first information block comprises Qfirst-type response signaling, a first response signaling is one of theQ first-type response signaling, the first response signalingcorresponds to the first sequence, and the first response signaling isused for determining that the first bit block is not correctly decoded,Q is a positive integer.
 18. The second node according to claim 16,wherein the first information block comprises a first target signaling,the first target signaling corresponds to the first sequence, the firsttarget signaling is used for determining that the first bit block is notcorrectly decoded, a target receiver of the first information block is afirst node.
 19. The second node according to claim 16, comprising: thethird transmitter determining a first candidate channel out of the firstcandidate channel and a second candidate channel; wherein a result ofdetection of the first radio signal is used for determining the firstcandidate channel; the second radio signal is transmitted on the firstcandidate channel.
 20. The second node according to claim 19,comprising: the third transmitter transmitting a first signaling in afirst time window; wherein a time domain resource unit occupied by thefirst candidate channel and a time domain resource unit occupied by thesecond candidate channel both belong to the first time window; at leastone of a time-frequency resource unit occupied by the first sequence anda time-frequency resource unit occupied by the first radio signal isused for determining the first time window; the first signaling is usedfor determining scheduling information of the second radio signal.